Supported image formats: PNG, JPEG.

Dots-per-inch - really only relevant if you intend to print the PDF file. Leave the default value if you are unsure.

Use OCR (optical character recognition) to overlay a text layer on your image(s) which allows the resulting PDF to be searchable. Only english is supported at this time.

Combine images into a single PDF with multiple pages. By default, a single-page PDF is created for each image.