PDFEncrypt
QPDF
PDF Unshare
PDFTK Builder
iSafePDF
PDFtk
PyPDF2
PDFsam
PDFTools by SheelApps
PDFTK Builder
QPDF
iSafePDF
PyPDF2
PDFsam
GSView
PDF Architect
PDFEncrypt PDFTools by SheelAppsBased 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
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.
PDF Unshare - pdf unshare, pdf protection, protect, share, updf, prevent, Lock PDF, Encrypt PDF, PDF Access, Lock, PDF, Encrypt, Access
iSafePDF - iSafePDF is a free open source PDF protection software.
PyPDF2 - PyPDF2 - A utility to read and write pdfs with Python
PDFtk - PDFtk is a simple tool for doing everyday things with PDF documents.