This page describes how to convert images to PDF in .NET using the Pdfcrowd API. The API is easy to use and the integration takes only a few of lines of code.
We also offer other installation options (NuGet, GitHub).
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.
To get your personal API credentials, you can start a free API trial or buy the API license.
using System; using System.IO; public class ApiTest { public static void Main() { try { // create the API client instance pdfcrowd.ImageToPdfClient client = new pdfcrowd.ImageToPdfClient("your_username", "your_apikey"); // run the conversion and write the result to a file client.convertFileToFile("/path/to/logo.png", "logo.pdf"); } catch(pdfcrowd.Error why) { // report the error System.Console.Error.WriteLine("Pdfcrowd Error: " + why); // rethrow or handle the exception throw; } } }
using System; using System.IO; public class ApiTest { public static void Main() { try { // create the API client instance pdfcrowd.ImageToPdfClient client = new pdfcrowd.ImageToPdfClient("your_username", "your_apikey"); // run the conversion and store the result into the "pdf" variable byte[] pdf = client.convertFile("/path/to/logo.png"); // at this point the "pdf" variable contains PDF raw data and // can be sent in an HTTP response, saved to a file, etc. } catch(pdfcrowd.Error why) { // report the error System.Console.Error.WriteLine("Pdfcrowd Error: " + why); // rethrow or handle the exception throw; } } }
using System; using System.IO; public class ApiTest { public static void Main() { try { // create the API client instance pdfcrowd.ImageToPdfClient client = new pdfcrowd.ImageToPdfClient("your_username", "your_apikey"); // create an output stream for the conversion result FileStream outputStream = new FileStream("logo.pdf", FileMode.CreateNew); // run the conversion and write the result into the output stream client.convertFileToStream("/path/to/logo.png", outputStream); // close the output stream outputStream.Close(); } catch(pdfcrowd.Error why) { // report the error System.Console.Error.WriteLine("Pdfcrowd Error: " + why); // rethrow or handle the exception throw; } } }
using System; using System.IO; public class ApiTest { public static void Main() { try { // create the API client instance pdfcrowd.ImageToPdfClient client = new pdfcrowd.ImageToPdfClient("your_username", "your_apikey"); // run the conversion and write the result to a file client.convertUrlToFile("https://pdfcrowd.com/static/images/logo.png", "logo.pdf"); } catch(pdfcrowd.Error why) { // report the error System.Console.Error.WriteLine("Pdfcrowd Error: " + why); // rethrow or handle the exception throw; } } }
using System; using System.IO; public class ApiTest { public static void Main() { try { // create the API client instance pdfcrowd.ImageToPdfClient client = new pdfcrowd.ImageToPdfClient("your_username", "your_apikey"); // run the conversion and store the result into the "pdf" variable byte[] pdf = client.convertUrl("https://pdfcrowd.com/static/images/logo.png"); // at this point the "pdf" variable contains PDF raw data and // can be sent in an HTTP response, saved to a file, etc. } catch(pdfcrowd.Error why) { // report the error System.Console.Error.WriteLine("Pdfcrowd Error: " + why); // rethrow or handle the exception throw; } } }
using System; using System.IO; public class ApiTest { public static void Main() { try { // create the API client instance pdfcrowd.ImageToPdfClient client = new pdfcrowd.ImageToPdfClient("your_username", "your_apikey"); // create an output stream for the conversion result FileStream outputStream = new FileStream("logo.pdf", FileMode.CreateNew); // run the conversion and write the result into the output stream client.convertUrlToStream("https://pdfcrowd.com/static/images/logo.png", outputStream); // close the output stream outputStream.Close(); } catch(pdfcrowd.Error why) { // report the error System.Console.Error.WriteLine("Pdfcrowd Error: " + why); // rethrow or handle the exception throw; } } }
using System; using System.IO; public class ApiTest { public static void Main() { try { // create the API client instance pdfcrowd.ImageToPdfClient client = new pdfcrowd.ImageToPdfClient("your_username", "your_apikey"); // run the conversion and write the result to a file client.convertRawDataToFile(File.ReadAllBytes("/path/to/logo.png"), "logo.pdf"); } catch(pdfcrowd.Error why) { // report the error System.Console.Error.WriteLine("Pdfcrowd Error: " + why); // rethrow or handle the exception throw; } } }
using System; using System.IO; public class ApiTest { public static void Main() { try { // create the API client instance pdfcrowd.ImageToPdfClient client = new pdfcrowd.ImageToPdfClient("your_username", "your_apikey"); // run the conversion and store the result into the "pdf" variable byte[] pdf = client.convertRawData(File.ReadAllBytes("/path/to/logo.png")); // at this point the "pdf" variable contains PDF raw data and // can be sent in an HTTP response, saved to a file, etc. } catch(pdfcrowd.Error why) { // report the error System.Console.Error.WriteLine("Pdfcrowd Error: " + why); // rethrow or handle the exception throw; } } }
using System; using System.IO; public class ApiTest { public static void Main() { try { // create the API client instance pdfcrowd.ImageToPdfClient client = new pdfcrowd.ImageToPdfClient("your_username", "your_apikey"); // create an output stream for the conversion result FileStream outputStream = new FileStream("logo.pdf", FileMode.CreateNew); // run the conversion and write the result into the output stream client.convertRawDataToStream(File.ReadAllBytes("/path/to/logo.png"), outputStream); // close the output stream outputStream.Close(); } catch(pdfcrowd.Error why) { // report the error System.Console.Error.WriteLine("Pdfcrowd Error: " + why); // rethrow or handle the exception throw; } } }
using System; using System.IO; public class ApiTest { public static void Main() { try { // create the API client instance pdfcrowd.ImageToPdfClient client = new pdfcrowd.ImageToPdfClient("your_username", "your_apikey"); // configure the conversion client.setDebugLog(true); // run the conversion and write the result to a file client.convertFileToFile("/path/to/logo.png", "logo.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 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); // rethrow or handle the exception throw; } } }
Refer for details to the API Method Reference.