PDF Labs

PDFtk (PDF Toolkit) is a powerful and lightweight command-line tool for working with PDF files on Windows, macOS, and Linux. Developed by PDF Labs, it is widely used by system administrators, developers, and advanced users who need to automate or batch-process PDF tasks without relying on a graphical interface.

PDFtk allows users to merge, split, rotate, stamp, encrypt, and decrypt PDF files efficiently. It’s an excellent choice for integrating PDF manipulation into scripts, server environments, or desktop workflows.

There are multiple versions available:
– PDFtk Free: A basic GUI for Windows users
– PDFtk Server: A command-line utility for all platforms
– PDFtk Pro: A premium version with extended features and GUI support

Thanks to its simplicity, speed, and flexibility, PDFtk remains a staple in many enterprise and academic environments that require reliable PDF automation.