Image to PDF via HTTP API

Overview

This page serves as a guide for using the PDFCrowd API to convert images to PDF. You can call the API by sending an HTTP request to the API server address with options passed as POST data.

Quick Start

Below are examples to help you quickly get started with the API. Explore our additional examples for more insights.

curl -f -u your_username:your_apikey \
    -o logo.pdf \
    -F input_format=image \
    -F output_format=pdf \
    -F file=@/path/to/logo.png \
    https://api.pdfcrowd.com/convert/24.04/

curl -f -u your_username:your_apikey \
    -o logo.pdf \
    -F input_format=image \
    -F output_format=pdf \
    -F url=https://pdfcrowd.com/static/images/logo.png \
    https://api.pdfcrowd.com/convert/24.04/

Authentication

The authentication method is HTTP Basic authentication.

HTTP Basic authentication

To authenticate, add the following HTTP header to your request. <credentials> is the Base64 encoding of your username and API key joined by a single colon.

Authorization: Basic <credentials>

Server Address

The server address: https://api.pdfcrowd.com/convert/24.04/

The content type for POST requests must be `multipart/form-data` if the request uploads any local files. Otherwise, `application/x-www-form-urlencoded` can also be used.

Show older API versions.

Response Headers

The HTTP response contains the following headers.

Name	Description
x-pdfcrowd-debug-log	URL of the debug log
x-pdfcrowd-remaining-credits	The number of conversion credits remaining in your account
x-pdfcrowd-consumed-credits	The number of credits used for the conversion
x-pdfcrowd-job-id	The unique identifier for the conversion
x-pdfcrowd-output-size	Size of the output data in bytes

Troubleshooting

If you are receiving an error, refer to the API Status Codes for more information.
Use debug_log to obtain detailed information about the conversion process, including load errors, load times, browser console output, etc.
Consult the FAQ for answers to common questions.
Contact us if you need assistance or if there is a feature you are missing.

POST Parameter Reference

Refer to the Image to PDF POST Reference for a description of all options.

Image to PDF / HTTP API Guide