pdflayer - Free, powerful HTML to PDF API supporting both URL and raw HTML conversion. Unlimited document size, lightning-fast and compatible PHP, Python, Ruby, etc.
PDFtoWord Converter - Simplest solution for converting PDF to editable Word documents.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
Apowersoft PDF Converter - Apowersoft PDF Converter is a safe and stable PDF converter, which can quickly convert PDF to Word, PPT, Excel, JPG, PNG and many more formats.
Tcpdf - TCPDF: Open Source PHP Class for generating PDF documents
ProperSoft - Convert transaction files to a format your accounting software imports. Need to import transactions, but the format is not supported by your accounting software? Try ProperSoft converters and make your transaction files importable.