PDFTron provides the best utility for conversion and view of PDF/XPS Documents compatible with various platforms.
There are quite a load full of advantages provided by PDFTron which are as follows:
Management of watermark and content copying restrictions on the viewer app.
Ability to view XOD, PDF and Office Documents on the viewer with great ease and efficiency on different platforms such as web, android, ios etc.
Great tech support that includes them creating a beta version for your case as per the requirement to resolve the queries put forward.
One of the challenges I faced was the difference in the processing memory consumption on the different environments such as Windows and Linux. The memory consumption for the conversion of PDF document into the XOD document was low on windows but the same was pretty high in the Linux environment which was set up in our production. This lead to Out of memory errors while converting PDFs with high resolution images and containing multiple layers of data within the PDFs.
It is one of the best products available for PDF conversion and view capabilities. It offers great technical support for the users and handles all the challenges that we face by providing rectified and modified libraries at the earliest.
Our business product was a content repository and view system wherein the web application had a role of viewing the documents with the watermark of the user and disable the content copying and selection in the viewed documents. The PDFTron libraries were used for conversion of pdf documents to XOD files and could be viewed on the XOD viewer along with watermark and fast web view.