HTML to PDF API - .Net

Learn how to convert web pages and HTML documents to PDF in .Net using the Pdfcrowd API v2. The API is easy to use and the integration takes only a couple of lines of code.

Installation

Download pdfcrowd-4.4.1-dotnet.zip, unzip it and add a reference to pdfcrowd.dll to your project.

Learn more about other install options.

Authentication

Authentication is needed in order to use the Pdfcrowd API. The credentials used for accessing the API are your Pdfcrowd username and the API key.
Sign up for a Free Trial

Examples

Convert a web page to a PDF file

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // run the conversion and write the result to a file
            client.convertUrlToFile("http://www.example.com", "example.pdf");
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Convert a web page to in-memory PDF

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // create output file for conversion result
            FileStream outputFile = new FileStream("example.pdf", FileMode.CreateNew);

            // run the conversion and store the result into a pdf variable
            byte[] pdf = client.convertUrl("http://www.example.com");

            // write the pdf into the output file
            outputFile.Write(pdf, 0, pdf.Length);

            // close the output file
            outputFile.Close();
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Convert a web page and write the resulting PDF to an output stream

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // create output stream for conversion result
            FileStream outputStream = new FileStream("example.pdf", FileMode.CreateNew);

            // run the conversion and write the result into the output stream
            client.convertUrlToStream("http://www.example.com", outputStream);

            // close the output stream
            outputStream.Close();
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Convert a local HTML file to a PDF file

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // run the conversion and write the result to a file
            client.convertFileToFile("/path/to/MyLayout.html", "MyLayout.pdf");
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Convert a local HTML file to in-memory PDF

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // create output file for conversion result
            FileStream outputFile = new FileStream("MyLayout.pdf", FileMode.CreateNew);

            // run the conversion and store the result into a pdf variable
            byte[] pdf = client.convertFile("/path/to/MyLayout.html");

            // write the pdf into the output file
            outputFile.Write(pdf, 0, pdf.Length);

            // close the output file
            outputFile.Close();
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Convert a local HTML file and write the resulting PDF to an output stream

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // create output stream for conversion result
            FileStream outputStream = new FileStream("MyLayout.pdf", FileMode.CreateNew);

            // run the conversion and write the result into the output stream
            client.convertFileToStream("/path/to/MyLayout.html", outputStream);

            // close the output stream
            outputStream.Close();
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Convert a string containing HTML to a PDF file

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // run the conversion and write the result to a file
            client.convertStringToFile("<html><body><h1>Hello World!</h1></body></html>", "HelloWorld.pdf");
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Convert a string containing HTML to in-memory PDF

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // create output file for conversion result
            FileStream outputFile = new FileStream("HelloWorld.pdf", FileMode.CreateNew);

            // run the conversion and store the result into a pdf variable
            byte[] pdf = client.convertString("<html><body><h1>Hello World!</h1></body></html>");

            // write the pdf into the output file
            outputFile.Write(pdf, 0, pdf.Length);

            // close the output file
            outputFile.Close();
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Convert a string containing HTML and write the resulting PDF to an output stream

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // create output stream for conversion result
            FileStream outputStream = new FileStream("HelloWorld.pdf", FileMode.CreateNew);

            // run the conversion and write the result into the output stream
            client.convertStringToStream("<html><body><h1>Hello World!</h1></body></html>", outputStream);

            // close the output stream
            outputStream.Close();
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Get info about the current conversion

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // configure the conversion
            client.setDebugLog(true);

            // run the conversion and write the result to a file
            client.convertFileToFile("/path/to/MyLayout.html", "MyLayout.pdf");
            
            // print URL to the debug log
            System.Console.WriteLine("Debug log url: " + client.getDebugLogUrl());
            
            // print the number of available conversion credits in your account
            System.Console.WriteLine("Remaining credit count: " + client.getRemainingCreditCount());
            
            // print the number of credits consumed by the conversion
            System.Console.WriteLine("Consumed credit count: " + client.getConsumedCreditCount());
            
            // print the unique ID of the conversion
            System.Console.WriteLine("Job id: " + client.getJobId());
            
            // print the total number of pages in the output document
            System.Console.WriteLine("Page count: " + client.getPageCount());
            
            // print the size of the output in bytes
            System.Console.WriteLine("Output size: " + client.getOutputSize());
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Advanced Examples

Customize the page size and the orientation

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // configure the conversion
            client.setPageSize("Letter");
            client.setOrientation("landscape");
            client.setNoMargins(true);

            // run the conversion and write the result to a file
            client.convertUrlToFile("http://www.example.com", "letter_landscape.pdf");
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Put the source URL in the header and the page number in the footer

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // configure the conversion
            client.setHeaderHeight("15mm");
            client.setFooterHeight("10mm");
            client.setHeaderHtml("<a class='pdfcrowd-source-url' data-pdfcrowd-placement='href-and-content'></a>");
            client.setFooterHtml("<center><span class='pdfcrowd-page-number'></span></center>");
            client.setMarginTop("0mm");
            client.setMarginBottom("0mm");

            // run the conversion and write the result to a file
            client.convertUrlToFile("http://www.example.com", "header_footer.pdf");
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Zoom the HTML document

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // configure the conversion
            client.setScaleFactor(300);

            // run the conversion and write the result to a file
            client.convertUrlToFile("http://www.example.com", "zoom_300.pdf");
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Set PDF metadata

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // configure the conversion
            client.setAuthor("Pdfcrowd");
            client.setTitle("Hello");
            client.setSubject("Demo");
            client.setKeywords("Pdfcrowd,demo");

            // run the conversion and write the result to a file
            client.convertUrlToFile("http://www.example.com", "with_metadata.pdf");
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Create a Powerpoint like presentation from an HTML document

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // configure the conversion
            client.setPageLayout("single-page");
            client.setPageMode("full-screen");
            client.setInitialZoomType("fit-page");
            client.setOrientation("landscape");
            client.setNoMargins(true);

            // run the conversion and write the result to a file
            client.convertUrlToFile("https://pdfcrowd.com/doc/api/", "slide_show.pdf");
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Convert an HTML document section

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // configure the conversion
            client.setElementToConvert("#main");

            // run the conversion and write the result to a file
            client.convertUrlToFile("https://pdfcrowd.com/doc/api/", "html_part.pdf");
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Inject an HTML code

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // configure the conversion
            client.setCustomJavascript("el=document.createElement('h2'); el.textContent='Hello from Pdfcrowd API'; el.style.color='red'; el_before=document.getElementsByTagName('h1')[0]; el_before.parentNode.insertBefore(el, el_before.nextSibling)");

            // run the conversion and write the result to a file
            client.convertUrlToFile("http://www.example.com", "html_inject.pdf");
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Renderer debugging - highlight HTML elements

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // configure the conversion
            client.setCustomJavascript("libPdfcrowd.highlightHtml(false, true, true, false)");

            // run the conversion and write the result to a file
            client.convertUrlToFile("http://www.example.com", "highlight_background.pdf");
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Renderer debugging - borders with spacing around HTML elements

using System;
using System.IO;

public class ApiTest
{
    public static void Main()
    {
        try
        {
            // create the API client instance
            pdfcrowd.HtmlToPdfClient client = new pdfcrowd.HtmlToPdfClient(
                "your_username", "your_apikey");

            // configure the conversion
            client.setCustomJavascript("libPdfcrowd.highlightHtml(true, false, true, true)");

            // run the conversion and write the result to a file
            client.convertUrlToFile("http://www.example.com", "highlight_borders.pdf");
        }
        catch(pdfcrowd.Error why)
        {
            // report the error
            System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

            // handle the exception here or rethrow and handle it at a higher level
            throw;
        }
    }
}

Check out the Github repository with examples of Pdfcrowd API integration into various web frameworks. For .Net see:

HTML to PDF in ASP.NET Web Forms

Tips & Tricks

The API lets you convert a web page, a local HTML file, or a string containing HTML. The result of the conversion can be stored to a local file, to a stream object or to a variable. See the conversion input section for more details.

The best way to start with the API is to choose one of the examples and once you get it working, you can:

Change the page size with setPageSize and the page orientation with setOrientation.
- You can setPageHeight to -1 to get a single page PDF containing the whole document.
Adjust the page margins with setPageMargins.
Specify headers and footers with setHeaderHtml and setFooterHtml.
Scale the HTML contents with setScaleFactor.
And many more. See the HTML to PDF API reference for available options.

You can also use these HTML related features:

You can use the following classes in your HTML code which hide/remove elements from the output:
- pdfcrowd-remove - sets display:none!important on the element
- pdfcrowd-hide - sets visibility:hidden!important on the element
You can switch to the print version of the page (if it exists) with setUsePrintMedia.
You can force a page break with
<div style="page-break-before:always"></div>
You can avoid a page break inside an element with the following CSS
img { page-break-inside:avoid }
You can use setCustomJavascript to alter the HTML contents with a custom JavaScript.

Error Handling

try 
{
    // call the API 
}
catch(pdfcrowd.Error why) 
{
    // print error
    System.Console.Error.WriteLine("Pdfcrowd Error: " + why);

    // print just error code
    System.Console.Error.WriteLine("Pdfcrowd Error Code: " + why.getCode());

    // print just error message
    System.Console.Error.WriteLine("Pdfcrowd Error Message: " + why.getMessage());

    // or handle the error in your way
}

Troubleshooting

Check API Status Codes in case of the error code is returned.
You can use setDebugLog and getDebugLogUrl to get detailed info about the conversion, such as conversion errors, time, console output.
You can use our JavaScript library to resolve rendering problems, such as missing content or blank pages.
Just use setCustomJavascript with libPdfcrowd.highlightHtml(borders, backgrounds, labels, noZeroSpace) method call to visualize all HTML elements. See example.
Take a look at the FAQ section.

API Reference - class HtmlToPdfClient

Conversion from HTML to PDF. All setter methods return HtmlToPdfClient object unless otherwise specified.

Constructor

public HtmlToPdfClient(string userName, string apiKey)

Constructor for the Pdfcrowd API client.

Parameter	Description	Default
userName	Your username at Pdfcrowd.
apiKey	Your API key.

Conversion Input

public byte[] convertUrl(string url)

Convert a web page.

Parameter	Description	Default
url	The address of the web page to convert. The supported protocols are http:// and https://.

Returns

byte[] - Byte array containing the conversion output.

public void convertUrlToStream(string url, Stream outStream)

Convert a web page and write the result to an output stream.

Parameter	Description	Default
url	The address of the web page to convert. The supported protocols are http:// and https://.
outStream	The output stream that will contain the conversion output.

public void convertUrlToFile(string url, string filePath)

Convert a web page and write the result to a local file.

Parameter	Description	Default
url	The address of the web page to convert. The supported protocols are http:// and https://.
filePath	The output file path. The string must not be empty.

public byte[] convertFile(string file)

Convert a local file.

Parameter	Description	Default
file	The path to a local file to convert. The file can be either a single file or an archive (.tar.gz, .tar.bz2, or .zip). If the HTML document refers to local external assets (images, style sheets, javascript), zip the document together with the assets. The file must exist and not be empty. The file name must have a valid extension.

Returns

byte[] - Byte array containing the conversion output.

public void convertFileToStream(string file, Stream outStream)

Convert a local file and write the result to an output stream.

Parameter	Description	Default
file	The path to a local file to convert. The file can be either a single file or an archive (.tar.gz, .tar.bz2, or .zip). If the HTML document refers to local external assets (images, style sheets, javascript), zip the document together with the assets. The file must exist and not be empty. The file name must have a valid extension.
outStream	The output stream that will contain the conversion output.

public void convertFileToFile(string file, string filePath)

Convert a local file and write the result to a local file.

Parameter	Description	Default
file	The path to a local file to convert. The file can be either a single file or an archive (.tar.gz, .tar.bz2, or .zip). If the HTML document refers to local external assets (images, style sheets, javascript), zip the document together with the assets. The file must exist and not be empty. The file name must have a valid extension.
filePath	The output file path. The string must not be empty.

public byte[] convertString(string text)

Convert a string.

Parameter	Description	Default
text	The string content to convert. The string must not be empty.

Returns

byte[] - Byte array containing the conversion output.

public void convertStringToStream(string text, Stream outStream)

Convert a string and write the output to an output stream.

Parameter	Description	Default
text	The string content to convert. The string must not be empty.
outStream	The output stream that will contain the conversion output.

public void convertStringToFile(string text, string filePath)

Convert a string and write the output to a file.

Parameter	Description	Default
text	The string content to convert. The string must not be empty.
filePath	The output file path. The string must not be empty.

Page setup

public HtmlToPdfClient setPageSize(string pageSize)

Set the output page size.

Parameter	Description	Default
pageSize	Allowed values: A2 A3 A4 A5 A6 Letter	A4

public HtmlToPdfClient setPageWidth(string pageWidth)

Set the output page width. The safe maximum is 200in otherwise some PDF viewers may be unable to open the PDF.

Parameter	Description	Default
pageWidth	Can be specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	8.27in

Examples:

setPageWidth("300mm")
setPageWidth("9.5in")

public HtmlToPdfClient setPageHeight(string pageHeight)

Set the output page height. Use -1 for a single page PDF. The safe maximum is 200in otherwise some PDF viewers may be unable to open the PDF.

Parameter	Description	Default
pageHeight	Can be -1 or specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	11.7in

Examples:

setPageHeight("350mm")
setPageHeight("15.25in")
The height of the page is calculated automatically so that the whole document fits into it.

setPageHeight("-1")

public HtmlToPdfClient setPageDimensions(string width, string height)

Set the output page dimensions.

Parameter	Description	Default
width	Set the output page width. The safe maximum is 200in otherwise some PDF viewers may be unable to open the PDF. Can be specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	8.27in
height	Set the output page height. Use -1 for a single page PDF. The safe maximum is 200in otherwise some PDF viewers may be unable to open the PDF. Can be -1 or specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	11.7in

Examples:

setPageDimensions("300mm", "350mm")
setPageDimensions("9.5in", "15.25in")
setPageDimensions("372mm", "520pt")

public HtmlToPdfClient setOrientation(string orientation)

Set the output page orientation.

Parameter	Description	Default
orientation	Allowed values: landscape portrait	portrait

public HtmlToPdfClient setMarginTop(string marginTop)

Set the output page top margin.

Parameter	Description	Default
marginTop	Can be specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	0.4in

Examples:

setMarginTop("1in")
setMarginTop("2.5cm")

public HtmlToPdfClient setMarginRight(string marginRight)

Set the output page right margin.

Parameter	Description	Default
marginRight	Can be specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	0.4in

Examples:

setMarginRight("1in")
setMarginRight("2.5cm")

public HtmlToPdfClient setMarginBottom(string marginBottom)

Set the output page bottom margin.

Parameter	Description	Default
marginBottom	Can be specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	0.4in

Examples:

setMarginBottom("1in")
setMarginBottom("2.5cm")

public HtmlToPdfClient setMarginLeft(string marginLeft)

Set the output page left margin.

Parameter	Description	Default
marginLeft	Can be specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	0.4in

Examples:

setMarginLeft("1in")
setMarginLeft("2.5cm")

public HtmlToPdfClient setNoMargins(bool noMargins)

Disable margins.

Parameter	Description	Default
noMargins	Set to true to disable margins.	false

public HtmlToPdfClient setPageMargins(string top, string right, string bottom, string left)

Set the output page margins.

Parameter	Description	Default
top	Set the output page top margin. Can be specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	0.4in
right	Set the output page right margin. Can be specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	0.4in
bottom	Set the output page bottom margin. Can be specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	0.4in
left	Set the output page left margin. Can be specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	0.4in

public HtmlToPdfClient setHeaderUrl(string headerUrl)

Load an HTML code from the specified URL and use it as the page header. The following classes can be used in the HTML. The content of the respective elements will be expanded as follows:

pdfcrowd-page-count - the total page count of printed pages
pdfcrowd-page-number - the current page number
pdfcrowd-source-url - the source URL of a converted document

The following attributes can be used:

data-pdfcrowd-number-format - specifies the type of the used numerals
- Arabic numerals are used by default.
- Roman numerals can be generated by the roman and roman-lowercase values
- Example:
data-pdfcrowd-placement - specifies where to place the source URL, allowed values:
- The URL is inserted to the content
 - Example: 
 will produce http://example.com
- href - the URL is set to the href attribute
 - Example: <a class='pdfcrowd-source-url' data-pdfcrowd-placement='href'>Link to source</a>
 will produce <a href='http://example.com'>Link to source</a>
- href-and-content - the URL is set to the href attribute and to the content
 - Example: <a class='pdfcrowd-source-url' data-pdfcrowd-placement='href-and-content'></a>
 will produce <a href='http://example.com'>http://example.com</a>

Parameter	Description	Default
headerUrl	The supported protocols are http:// and https://.

Examples:

setHeaderUrl("http://myserver.com/header.html")

public HtmlToPdfClient setHeaderHtml(string headerHtml)

Use the specified HTML code as the page header. The following classes can be used in the HTML. The content of the respective elements will be expanded as follows:

pdfcrowd-page-count - the total page count of printed pages
pdfcrowd-page-number - the current page number
pdfcrowd-source-url - the source URL of a converted document

The following attributes can be used:

data-pdfcrowd-number-format - specifies the type of the used numerals
- Arabic numerals are used by default.
- Roman numerals can be generated by the roman and roman-lowercase values
- Example:
data-pdfcrowd-placement - specifies where to place the source URL, allowed values:
- The URL is inserted to the content
 - Example: 
 will produce http://example.com
- href - the URL is set to the href attribute
 - Example: <a class='pdfcrowd-source-url' data-pdfcrowd-placement='href'>Link to source</a>
 will produce <a href='http://example.com'>Link to source</a>
- href-and-content - the URL is set to the href attribute and to the content
 - Example: <a class='pdfcrowd-source-url' data-pdfcrowd-placement='href-and-content'></a>
 will produce <a href='http://example.com'>http://example.com</a>

Parameter	Description	Default
headerHtml	The string must not be empty.

Examples:

It displays the page number and the total page count.

setHeaderHtml("Page of pages")

public HtmlToPdfClient setHeaderHeight(string headerHeight)

Set the header height.

Parameter	Description	Default
headerHeight	Can be specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	0.5in

Examples:

setHeaderHeight("30mm")
setHeaderHeight("1in")

public HtmlToPdfClient setFooterUrl(string footerUrl)

Load an HTML code from the specified URL and use it as the page footer. The following classes can be used in the HTML. The content of the respective elements will be expanded as follows:

pdfcrowd-page-count - the total page count of printed pages
pdfcrowd-page-number - the current page number
pdfcrowd-source-url - the source URL of a converted document

The following attributes can be used:

data-pdfcrowd-number-format - specifies the type of the used numerals
- Arabic numerals are used by default.
- Roman numerals can be generated by the roman and roman-lowercase values
- Example:
data-pdfcrowd-placement - specifies where to place the source URL, allowed values:
- The URL is inserted to the content
 - Example: 
 will produce http://example.com
- href - the URL is set to the href attribute
 - Example: <a class='pdfcrowd-source-url' data-pdfcrowd-placement='href'>Link to source</a>
 will produce <a href='http://example.com'>Link to source</a>
- href-and-content - the URL is set to the href attribute and to the content
 - Example: <a class='pdfcrowd-source-url' data-pdfcrowd-placement='href-and-content'></a>
 will produce <a href='http://example.com'>http://example.com</a>

Parameter	Description	Default
footerUrl	The supported protocols are http:// and https://.

Examples:

setFooterUrl("http://myserver.com/header.html")

public HtmlToPdfClient setFooterHtml(string footerHtml)

Use the specified HTML as the page footer. The following classes can be used in the HTML. The content of the respective elements will be expanded as follows:

pdfcrowd-page-count - the total page count of printed pages
pdfcrowd-page-number - the current page number
pdfcrowd-source-url - the source URL of a converted document

The following attributes can be used:

data-pdfcrowd-number-format - specifies the type of the used numerals
- Arabic numerals are used by default.
- Roman numerals can be generated by the roman and roman-lowercase values
- Example:
data-pdfcrowd-placement - specifies where to place the source URL, allowed values:
- The URL is inserted to the content
 - Example: 
 will produce http://example.com
- href - the URL is set to the href attribute
 - Example: <a class='pdfcrowd-source-url' data-pdfcrowd-placement='href'>Link to source</a>
 will produce <a href='http://example.com'>Link to source</a>
- href-and-content - the URL is set to the href attribute and to the content
 - Example: <a class='pdfcrowd-source-url' data-pdfcrowd-placement='href-and-content'></a>
 will produce <a href='http://example.com'>http://example.com</a>

Parameter	Description	Default
footerHtml	The string must not be empty.

Examples:

It displays the page number and the total page count.

setFooterHtml("Page of pages")

public HtmlToPdfClient setFooterHeight(string footerHeight)

Set the footer height.

Parameter	Description	Default
footerHeight	Can be specified in inches (in), millimeters (mm), centimeters (cm), or points (pt).	0.5in

Examples:

setFooterHeight("30mm")
setFooterHeight("1in")

public HtmlToPdfClient setPrintPageRange(string pages)

Set the page range to print.

Parameter	Description	Default
pages	A comma seperated list of page numbers or ranges.

Examples:

Just the second page is printed.

setPrintPageRange("2")
The first and the third page are printed.

setPrintPageRange("1,3")
Everything except the first page is printed.

setPrintPageRange("2-")
Just first 3 pages are printed.

setPrintPageRange("-3")
Pages 3, 6, 7, 8 and 9 are printed.

setPrintPageRange("3,6-9")

public HtmlToPdfClient setPageBackgroundColor(string pageBackgroundColor)

The page background color in RGB or RGBA hexadecimal format. The color fills the entire page regardless of the margins.

Parameter	Description	Default
pageBackgroundColor	The value must be in RRGGBB or RRGGBBAA hexadecimal format.

Examples:

red color

setPageBackgroundColor("FF0000")
green color

setPageBackgroundColor("00ff00")
green color with 50% opacity

setPageBackgroundColor("00ff0080")

public HtmlToPdfClient setPageWatermark(string pageWatermark)

Apply the first page of the watermark PDF to every page of the output PDF.

Parameter	Description	Default
pageWatermark	The file path to a local watermark PDF file. The file must exist and not be empty.

public HtmlToPdfClient setMultipageWatermark(string multipageWatermark)

Apply each page of the specified watermark PDF to the corresponding page of the output PDF.

Parameter	Description	Default
multipageWatermark	The file path to a local watermark PDF file. The file must exist and not be empty.

public HtmlToPdfClient setPageBackground(string pageBackground)

Apply the first page of the specified PDF to the background of every page of the output PDF.

Parameter	Description	Default
pageBackground	The file path to a local background PDF file. The file must exist and not be empty.

public HtmlToPdfClient setMultipageBackground(string multipageBackground)

Apply each page of the specified PDF to the background of the corresponding page of the output PDF.

Parameter	Description	Default
multipageBackground	The file path to a local background PDF file. The file must exist and not be empty.

public HtmlToPdfClient setExcludeHeaderOnPages(string pages)

The page header is not printed on the specified pages.

Parameter	Description	Default
pages	List of physical page numbers. Negative numbers count backwards from the last page: -1 is the last page, -2 is the last but one page, and so on. A comma seperated list of page numbers.

Examples:

The header is not printed on the second page.

setExcludeHeaderOnPages("2")
The header is not printed on the first and the last page.

setExcludeHeaderOnPages("1,-1")

public HtmlToPdfClient setExcludeFooterOnPages(string pages)

The page footer is not printed on the specified pages.

Parameter	Description	Default
pages	List of physical page numbers. Negative numbers count backwards from the last page: -1 is the last page, -2 is the last but one page, and so on. A comma seperated list of page numbers.

Examples:

The footer is not printed on the second page.

setExcludeFooterOnPages("2")
The footer is not printed on the first and the last page.

setExcludeFooterOnPages("1,-1")

public HtmlToPdfClient setPageNumberingOffset(int offset)

Set an offset between physical and logical page numbers.

Parameter	Description	Default
offset	Integer specifying page offset.	0

Examples:

The page numbering will start with 0. Set exclude_header_on_pages to "1" and the page numbering will start on the second page with 1.

setPageNumberingOffset(1)
The page numbering will start with 11 on the first page. It can be useful for joining documents.

setPageNumberingOffset(-10)

General Options

public HtmlToPdfClient setNoBackground(bool noBackground)

Do not print the background graphics.

Parameter	Description	Default
noBackground	Set to true to disable the background graphics.	false

public HtmlToPdfClient setDisableJavascript(bool disableJavascript)

Do not execute JavaScript.

Parameter	Description	Default
disableJavascript	Set to true to disable JavaScript in web pages.	false

public HtmlToPdfClient setDisableImageLoading(bool disableImageLoading)

Do not load images.

Parameter	Description	Default
disableImageLoading	Set to true to disable loading of images.	false

public HtmlToPdfClient setDisableRemoteFonts(bool disableRemoteFonts)

Disable loading fonts from remote sources.

Parameter	Description	Default
disableRemoteFonts	Set to true disable loading remote fonts.	false

public HtmlToPdfClient setBlockAds(bool blockAds)

Try to block ads. Enabling this option can produce smaller output and speed up the conversion.

Parameter	Description	Default
blockAds	Set to true to block ads in web pages.	false

public HtmlToPdfClient setDefaultEncoding(string defaultEncoding)

Set the default HTML content text encoding.

Parameter	Description	Default
defaultEncoding	The text encoding of the HTML content.	auto detect

public HtmlToPdfClient setHttpAuth(string userName, string password)

Set credentials to access HTTP base authentication protected websites.

Parameter	Description	Default
userName	Set the HTTP authentication user name.
password	Set the HTTP authentication password.

public HtmlToPdfClient setUsePrintMedia(bool usePrintMedia)

Use the print version of the page if available (@media print).

Parameter	Description	Default
usePrintMedia	Set to true to use the print version of the page.	false

public HtmlToPdfClient setNoXpdfcrowdHeader(bool noXpdfcrowdHeader)

Do not send the X-Pdfcrowd HTTP header in Pdfcrowd HTTP requests.

Parameter	Description	Default
noXpdfcrowdHeader	Set to true to disable sending X-Pdfcrowd HTTP header.	false

public HtmlToPdfClient setCookies(string cookies)

Set cookies that are sent in Pdfcrowd HTTP requests.

Parameter	Description	Default
cookies	The cookie string.

Examples:

setCookies("session=6d7184b3bf35;token=2710")

public HtmlToPdfClient setVerifySslCertificates(bool verifySslCertificates)

Do not allow insecure HTTPS connections.

Parameter	Description	Default
verifySslCertificates	Set to true to enable SSL certificate verification.	false

public HtmlToPdfClient setFailOnMainUrlError(bool failOnError)

Abort the conversion if the main URL HTTP status code is greater than or equal to 400.

Parameter	Description	Default
failOnError	Set to true to abort the conversion.	false

public HtmlToPdfClient setFailOnAnyUrlError(bool failOnError)

Abort the conversion if any of the sub-request HTTP status code is greater than or equal to 400 or if some sub-requests are still pending. See details in a debug log.

Parameter	Description	Default
failOnError	Set to true to abort the conversion.	false

public HtmlToPdfClient setCustomJavascript(string customJavascript)

Run a custom JavaScript after the document is loaded. The script is intended for post-load DOM manipulation (add/remove elements, update CSS, ...).

Parameter	Description	Default
customJavascript	String containing a JavaScript code. The string must not be empty.

public HtmlToPdfClient setCustomHttpHeader(string customHttpHeader)

Set a custom HTTP header that is sent in Pdfcrowd HTTP requests.

Parameter	Description	Default
customHttpHeader	A string containing the header name and value separated by a colon.

Examples:

setCustomHttpHeader("X-My-Client-ID:k2017-12345")

public HtmlToPdfClient setJavascriptDelay(int javascriptDelay)

Wait the specified number of milliseconds to finish all JavaScript after the document is loaded. The maximum value is determined by your API license.

Parameter	Description	Default
javascriptDelay	The number of milliseconds to wait. Must be a positive integer number or 0.	200

public HtmlToPdfClient setElementToConvert(string selectors)

Convert only the specified element from the main document and its children. The element is specified by one or more CSS selectors. If the element is not found, the conversion fails. If multiple elements are found, the first one is used.

Parameter	Description	Default
selectors	One or more CSS selectors separated by commas. The string must not be empty.

Examples:

The first element with the id main-content is converted.

setElementToConvert("#main-content")
The first element with the class name main-content is converted.

setElementToConvert(".main-content")
The first element with the tag name table is converted.

setElementToConvert("table")
The first element with the tag name table or with the id main-content is converted.

setElementToConvert("table, #main-content")
The first element within <div class="user-panel main"> is converted.

setElementToConvert("div.user-panel.main p.article")

public HtmlToPdfClient setElementToConvertMode(string mode)

Specify the DOM handling when only a part of the document is converted.

Parameter	Description	Default
mode	Allowed values: cut-out The element and its children are cut out of the document. remove-siblings All element's siblings are removed. hide-siblings All element's sibilings are hidden.	cut-out

public HtmlToPdfClient setWaitForElement(string selectors)

Wait for the specified element in a source document. The element is specified by one or more CSS selectors. The element is searched for in the main document and all iframes. If the element is not found, the conversion fails. Your API license defines the maximum wait time by "Max Delay" parameter.

Parameter	Description	Default
selectors	One or more CSS selectors separated by commas. The string must not be empty.

Examples:

Wait until an element with the id main-content is found.

setWaitForElement("#main-content")
Wait until an element with the class name main-content is found.

setWaitForElement(".main-content")
Wait until an element with the tag name table is found.

setWaitForElement("table")
Wait until an element with the tag name table or with the id main-content is found.

setWaitForElement("table, #main-content")
Wait until is found within <div class="user-panel main">.

setWaitForElement("div.user-panel.main p.article")

Print Resolution

public HtmlToPdfClient setViewport(int width, int height)

Set the viewport size. The viewport is the user's visible area of the page.

Parameter	Description	Default
width	Set the viewport width in pixels. The viewport is the user's visible area of the page. The value must be in a range 96-7680.	1024
height	Set the viewport height in pixels. The viewport is the user's visible area of the page. Must be a positive integer number.	768

public HtmlToPdfClient setRenderingMode(string renderingMode)

Sets the rendering mode.

Parameter	Description	Default
renderingMode	The rendering mode. Allowed values: default This mode is compatible with the Chrome preview. viewport Takes the viewport width into account.	default

public HtmlToPdfClient setScaleFactor(int scaleFactor)

Set the scaling factor (zoom) for the main page area.

Parameter	Description	Default
scaleFactor	The scale factor. The value must be in a range 10-500.	100

public HtmlToPdfClient setHeaderFooterScaleFactor(int headerFooterScaleFactor)

Set the scaling factor (zoom) for the header and footer.

Parameter	Description	Default
headerFooterScaleFactor	The scale factor. The value must be in a range 10-500.	100

public HtmlToPdfClient setDisableSmartShrinking(bool disableSmartShrinking)

Disable the intelligent shrinking strategy that tries to optimally fit the HTML contents to a PDF page.

Parameter	Description	Default
disableSmartShrinking	Set to true to disable the intelligent shrinking strategy.	false

PDF Format

Miscellaneous values for PDF output.

public HtmlToPdfClient setLinearize(bool linearize)

Create linearized PDF. This is also known as Fast Web View.

Parameter	Description	Default
linearize	Set to true to create linearized PDF.	false

public HtmlToPdfClient setEncrypt(bool encrypt)

Encrypt the PDF. This prevents search engines from indexing the contents.

Parameter	Description	Default
encrypt	Set to true to enable PDF encryption.	false

public HtmlToPdfClient setUserPassword(string userPassword)

Protect the PDF with a user password. When a PDF has a user password, it must be supplied in order to view the document and to perform operations allowed by the access permissions.

Parameter	Description	Default
userPassword	The user password.

public HtmlToPdfClient setOwnerPassword(string ownerPassword)

Protect the PDF with an owner password. Supplying an owner password grants unlimited access to the PDF including changing the passwords and access permissions.

Parameter	Description	Default
ownerPassword	The owner password.

public HtmlToPdfClient setNoPrint(bool noPrint)

Disallow printing of the output PDF.

Parameter	Description	Default
noPrint	Set to true to set the no-print flag in the output PDF.	false

public HtmlToPdfClient setNoModify(bool noModify)

Disallow modification of the ouput PDF.

Parameter	Description	Default
noModify	Set to true to set the read-only only flag in the output PDF.	false

public HtmlToPdfClient setNoCopy(bool noCopy)

Disallow text and graphics extraction from the output PDF.

Parameter	Description	Default
noCopy	Set to true to set the no-copy flag in the output PDF.	false

public HtmlToPdfClient setTitle(string title)

Set the title of the PDF.

Parameter	Description	Default
title	The title.

public HtmlToPdfClient setSubject(string subject)

Set the subject of the PDF.

Parameter	Description	Default
subject	The subject.

public HtmlToPdfClient setAuthor(string author)

Set the author of the PDF.

Parameter	Description	Default
author	The author.

public HtmlToPdfClient setKeywords(string keywords)

Associate keywords with the document.

Parameter	Description	Default
keywords	The string with the keywords.

Viewer Preferences

These preferences specify how a PDF viewer should present the document. The preferences may be ignored by some PDF viewers.

public HtmlToPdfClient setPageLayout(string pageLayout)

Specify the page layout to be used when the document is opened.

Parameter	Description	Default
pageLayout	Allowed values: single-page Display one page at a time. one-column Display the pages in one column. two-column-left Display the pages in two columns, with odd-numbered pages on the left. two-column-right Display the pages in two columns, with odd-numbered pages on the right.

public HtmlToPdfClient setPageMode(string pageMode)

Specify how the document should be displayed when opened.

Parameter	Description	Default
pageMode	Allowed values: full-screen Full-screen mode. thumbnails Thumbnail images are visible. outlines Document outline is visible.

public HtmlToPdfClient setInitialZoomType(string initialZoomType)

Specify how the page should be displayed when opened.

Parameter	Description	Default
initialZoomType	Allowed values: fit-width The page content is magnified just enough to fit the entire width of the page within the window. fit-height The page content is magnified just enough to fit the entire height of the page within the window. fit-page The page content is magnified just enough to fit the entire page within the window both horizontally and vertically. If the required horizontal and vertical magnification factors are different, use the smaller of the two, centering the page within the window in the other dimension.

public HtmlToPdfClient setInitialPage(int initialPage)

Display the specified page when the document is opened.

Parameter	Description	Default
initialPage	Must be a positive integer number.

public HtmlToPdfClient setInitialZoom(int initialZoom)

Specify the initial page zoom in percents when the document is opened.

Parameter	Description	Default
initialZoom	Must be a positive integer number.

public HtmlToPdfClient setHideToolbar(bool hideToolbar)

Specify whether to hide the viewer application's tool bars when the document is active.

Parameter	Description	Default
hideToolbar	Set to true to hide tool bars.	false

public HtmlToPdfClient setHideMenubar(bool hideMenubar)

Specify whether to hide the viewer application's menu bar when the document is active.

Parameter	Description	Default
hideMenubar	Set to true to hide the menu bar.	false

public HtmlToPdfClient setHideWindowUi(bool hideWindowUi)

Specify whether to hide user interface elements in the document's window (such as scroll bars and navigation controls), leaving only the document's contents displayed.

Parameter	Description	Default
hideWindowUi	Set to true to hide ui elements.	false

public HtmlToPdfClient setFitWindow(bool fitWindow)

Specify whether to resize the document's window to fit the size of the first displayed page.

Parameter	Description	Default
fitWindow	Set to true to resize the window.	false

public HtmlToPdfClient setCenterWindow(bool centerWindow)

Specify whether to position the document's window in the center of the screen.

Parameter	Description	Default
centerWindow	Set to true to center the window.	false

public HtmlToPdfClient setDisplayTitle(bool displayTitle)

Specify whether the window's title bar should display the document title. If false , the title bar should instead display the name of the PDF file containing the document.

Parameter	Description	Default
displayTitle	Set to true to display the title.	false

public HtmlToPdfClient setRightToLeft(bool rightToLeft)

Set the predominant reading order for text to right-to-left. This option has no direct effect on the document's contents or page numbering but can be used to determine the relative positioning of pages when displayed side by side or printed n-up

Parameter	Description	Default
rightToLeft	Set to true to set right-to-left reading order.	false

Miscellaneous

public HtmlToPdfClient setDebugLog(bool debugLog)

Turn on the debug logging. Details about the conversion are stored in the debug log. The URL of the log can be obtained from the getDebugLogUrl method or available in conversion statistics.

Parameter	Description	Default
debugLog	Set to true to enable the debug logging.	false

public string getDebugLogUrl()

Get the URL of the debug log for the last conversion.

Returns

string - The link to the debug log.

public int getRemainingCreditCount()

Get the number of conversion credits available in your account.
The returned value can differ from the actual count if you run parallel conversions.
The special value 999999 is returned if the information is not available.

Returns

int - The number of credits.

public int getConsumedCreditCount()

Get the number of credits consumed by the last conversion.

Returns

int - The number of credits.

public string getJobId()

Get the job id.

Returns

string - The unique job identifier.

public int getPageCount()

Get the total number of pages in the output document.

Returns

int - The page count.

public int getOutputSize()

Get the size of the output in bytes.

Returns

int - The count of bytes.

public HtmlToPdfClient setTag(string tag)

Tag the conversion with a custom value. The tag is used in conversion statistics. A value longer than 32 characters is cut off.

Parameter	Description	Default
tag	A string with the custom tag.

public HtmlToPdfClient setHttpProxy(string httpProxy)

A proxy server used by Pdfcrowd conversion process for accessing the source URLs with HTTP scheme. It can help to circumvent regional restrictions or provide limited access to your intranet.

Parameter	Description	Default
httpProxy	The value must have format DOMAIN_OR_IP_ADDRESS:PORT.

Examples:

setHttpProxy("myproxy.com:8080")
setHttpProxy("113.25.84.10:33333")

public HtmlToPdfClient setHttpsProxy(string httpsProxy)

A proxy server used by Pdfcrowd conversion process for accessing the source URLs with HTTPS scheme. It can help to circumvent regional restrictions or provide limited access to your intranet.

Parameter	Description	Default
httpsProxy	The value must have format DOMAIN_OR_IP_ADDRESS:PORT.

Examples:

setHttpsProxy("myproxy.com:443")
setHttpsProxy("113.25.84.10:44333")

public HtmlToPdfClient setClientCertificate(string clientCertificate)

A client certificate to authenticate Pdfcrowd converter on your web server. The certificate is used for two-way SSL/TLS authentication and adds extra security.

Parameter	Description	Default
clientCertificate	The file must be in PKCS12 format. The file must exist and not be empty.

public HtmlToPdfClient setClientCertificatePassword(string clientCertificatePassword)

A password for PKCS12 file with a client certificate if it's needed.

Parameter	Description	Default
clientCertificatePassword

API Client Options

public HtmlToPdfClient setUseHttp(bool useHttp)

Specifies if the client communicates over HTTP or HTTPS with Pdfcrowd API.

Parameter	Description	Default
useHttp	Set to true to use HTTP.	false

public HtmlToPdfClient setUserAgent(string userAgent)

Set a custom user agent HTTP header. It can be usefull if you are behind some proxy or firewall.

Parameter	Description	Default
userAgent	The user agent string.	pdfcrowd_dotnet_client/4.4.1 (http://pdfcrowd.com)

public HtmlToPdfClient setProxy(string host, int port, string userName, string password)

Specifies an HTTP proxy that the API client library will use to connect to the internet.

Parameter	Description	Default
host	The proxy hostname.
port	The proxy port.
userName	The username.
password	The password.

public HtmlToPdfClient setRetryCount(int retryCount)

Specifies the number of retries when the 502 HTTP status code is received. The 502 status code indicates a temporary network issue. This feature can be disabled by setting to 0.

Parameter	Description	Default
retryCount	Number of retries wanted.	1