PDFEncrypt is a free, open-source native Windows app that allows you to password protect (encrypt) PDF files for free, without purchasing expensive software.
Download Installer without .Net Framework
This app uses the iTextPDF open source library for encryption operations, and is released under the AGPL license. Complete source code is available on GitHub, and you can download the installer for Windows 7, 8, 10, and 11 below.
Users have requested a MSI package for use with Windows Active Directory. I built the PDFEncrypt V1 MSI using the free version of Advanced Installer. It has been tested on Windows 10 x64 and Windows 11 x64. Note that the MSI does not include .NET framework, so you...
We have set up a review link on Capterra to try and reach more people with the app. The first 85 people to review PDFEncrypt will get free gift cards. Here's the link: Review PDFEncrypt on Capterra
I'm excited to announce that the PDFEncrypt app is now available in the Microsoft Store!
Command-line arguments The latest release includes support for command-line arguments. This feature allows PDFEncrypt to be fully automated and incorporated into existing user workflows. The following command-line options are available: -i [input filename] or...
We are excited to announce that we have made our first reciprocal ad agreement. The footer ad appearing at the bottom of each page is displayed in association with an unpaid, reciprocal-link agreement with LockLizard, who provides DRM solutions for secure document...
PDFEncrypt is popular worldwide!