iLovePDF Rest Api - PHP Library
Convert files like docx, xlsx, pptx, html, and more to MarkDown
PDF Combiner is a user-friendly, GUI-based tool built in
Convert PDF to epub by OCR
Convert pdf to a djvu using profiles with all options of pdf2djvu
Convert HTML to PDF in .NET with C# using EVO HTML to PDF for .NET
The DjVu complete solution,with OCR Technology(Arabic ,English).
Convert PDF versions, so old software can still be used.