Q: We would like to know if PDFNet for mobile (http://www.pdftron.com/
pdfnet/) will allow us to write PDF files on a mobile device. After
writing, the PDF must be saved with the comments as a unique file.
A: PDFTron offers PDFNet SDK on various desktop, server, and mobile
platforms. The SDK allows for very easy integration with a target
application (e.g. C++, .Net, Java, etc) and offers many PDF
manipulation tools (e.g. markup, forms, document editing) beyond high-
quality PDF viewing.
With respect to mobile platforms PDFNet is available on Windows Mobile
and iOS (iPad/iPhone) and we are offering custom builds for various
flavors of Android OS (as native lib with Java bindings).