PDF4QT

PDF4QT

PDF4QT is a versatile, open-source PDF editor built for Windows and Linux, offering a rich set of features for viewing, editing, and manipulating PDF documents. With tools for text editing, form filling, annotations, image insertion, and document merging or splitting, it provides a user-friendly interface suitable for both casual and advanced users. As a lightweight desktop application developed with the Qt framework, PDF4QT serves as an open-source alternative to commercial PDF editors like Adobe Acrobat Pro, Foxit PDF Editor, and PDF-XChange Editor, making it ideal for users who prefer privacy, transparency, and platform flexibility.

Key features include:

• C++ Library: A robust library for developers to integrate PDF functionality into their applications.
• Command-Line Tool: Enables seamless script integration for automated PDF processing.
• Multiple Applications:
  • PDF4QT Viewer Profi: Advanced features like encryption, digital signature verification, and annotation editing.
  • PDF4QT Viewer Lite: Lightweight viewer for essential viewing functions.
  • PDF4QT DocPage Organizer: Manage documents and individual pages with ease.
  • PDF4QT DocDiff: Identify differences between two documents.
• Modern C++ and Multicore Support: Utilizes modern C++ features and multicore CPUs for efficient performance.
• PDF 2.0 Support: Actively working towards full integration of the PDF 2.0 standard.
• High DPI Support: Ensures compatibility with 4K/8K monitors for a visually stunning experience.

PDF4QT is licensed under LGPLv3 and hosted on Github.