PDF Unshare
iSafePDF
QPDF
PDFTK Builder
Locklizard Safeguard PDF Security
Wonderfulshare PDF Protect Pro
PDFTools by SheelApps
MacSonik PDF Encryption Tool
PDFEncrypt
QPDF
PDFTK Builder
iSafePDF
PDFtk
PyPDF2
PDFsam
PDFTools by SheelApps
PDF Unshare is a free PDF content protection utility that creates unshared PDF and UPDF formats to protect your PDF files from sharing, printing, editing, copying or unauthorized accessing. This creative document protection tool also allows you to set an expiry date for the protected PDFs, and then all these documents would not be viewed after that date.
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Based on our record, PDFEncrypt seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
PDFEncrypt has been super useful for doing something that none of the other open source PDF tools seem to do ... https://pdfencrypt.net/. Source: over 1 year ago
I built PDFEncrypt (https://pdfencrypt.net) a couple years ago based on a very simple need from a client: to encrypt PDF files via a native Windows app, for free. I have been amazed at the number of visitors (4000/mo), emails, downloads, and donations the project has received. I released it as open source software, and I'm now working on V2 (almost done!) which is a complete rewrite based on user requests, as... - Source: Hacker News / almost 2 years ago
iSafePDF - iSafePDF is a free open source PDF protection software.
QPDF - QPDF is a command-line program that does structural, content-preserving transformations on PDF...
PDFTK Builder - PDFTK Builder is a free graphical interface to for PDFTK, making it much easier to use.
Locklizard Safeguard PDF Security - Locklizard Safeguard PDF Security provides total PDF DRM protection and control over your documents...
PDFtk - PDFtk is a simple tool for doing everyday things with PDF documents.
Wonderfulshare PDF Protect Pro - pdfprotectfree.com offers the free online service for you to protect your pdf documents with the highest encryption technology. Super easy to use!