This page contains various examples of using the Image to Image API with HTTP POST. The examples are complete and fully functional. Read more about how to convert Image to Image with HTTP POST.
curl -f -u "your_username:your_apikey" \ -o "logo.jpg" \ -F "input_format=image" \ -F "output_format=jpg" \ -F "file=@/path/to/logo.png" \ https://api.pdfcrowd.com/convert/20.10/
curl -f -u "your_username:your_apikey" \ -o "logo.jpg" \ -F "input_format=image" \ -F "output_format=jpg" \ -F "url=https://pdfcrowd.com/static/images/logo.png" \ https://api.pdfcrowd.com/convert/20.10/