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PDFGuard Document Protection
by Zapper Software (510862 B.C. Ltd.)
PDFGuard: This program is for authors who want to sell or distribute PDF files online. This program will encrypt your PDF format files. This includes an PDF viewer for displaying the document. Users cannot copy your files when used with ShareGuard. This program is ideal for authors who wish to sell PDF files, books and/or technical information online. This program works, optionally, with ShareGuard to provide a lock and key system for sell
pdf document protection file encryption encryption
copyright protection intellectual property pdf e-book
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