Here are the top 3 most popular pdf authoring softwares as derived from our TpSort Score which is a continually popular score, it denotes an estimated popularity of a software.
It's possible to sign PDF documents digital with X.509 certificates. This signed documents are read only. Therefore it's possible to implement "electronic paper"......
Tool to edit PDF metadata, bookmarks, viewer preferences, .........
PDFtk is a simple tool for doing everyday things with PDF documents. It comes in three flavors: PDFtk Free, PDFtk Pro, and our original command-line tool PDFtk Server.PDFtk Free is our friendly graphical tool for quickly merging and splitting PDF documents and pages. It is free to use for as......
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