IronPDF - SDK for creating and editing PDFs.
Google Doc Publisher - Make Google Docs good-looking in two clicks
PDF to X - PDF to X is used to convert PDF documents to Word (.doc)/WordPad (.rtf) documents, HTML web pages, JPG/PNG/BMP/TIF/GIF/PCX/TGA images and plain text files in batch mode. It works without Adobe Acrobat or Adobe Reader.
ImportDoc Block for WordPress - Instantly update a WordPress post by editing a Google Doc
Apache PDFBox - The Apache PDFBox™ library is an open source Java tool for working with PDF documents.
Beaver Builder - A drag and drop design system for WordPress