PDF4QT
The facts below are what the maker publishes about PDF4QT, checked and dated. Our editors have not written about it yet.
Plans and prices
From PDF4QT's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| PDF4QT | Free | Open-source PDF toolkit · Windows and Linux · No warranty |
The facts
Each one read from PDF4QT's own pages, with the date it was checked.
What it does
- Annotation tools
- Yeschecked 20 Sep 2026
- Command-line use
- PDF4QT includes a command-line tool, which the project describes as useful for script integration.checked 11 Oct 2026
- Developer use
- The project can be compiled on Windows and Linux and requires a compiler supporting C++20.checked 11 Oct 2026
- Document security
- The project lists encryption and digital signature validation among its features.checked 11 Oct 2026
- Downloads
- The project lists Windows installer and ZIP downloads, plus Linux AppImage and Flatpak packages.checked 11 Oct 2026
- Form creation
- Nochecked 20 Sep 2026
- License
- The repository says PDF4QT is licensed under the MIT License.checked 11 Oct 2026
- Maintainer
- The README says the software is written and maintained by Jakub Melka.checked 11 Oct 2026
- OCR
- OCR for scanned documents uses Tesseract and can add a searchable invisible text layer.checked 11 Oct 2026
- PDF conversion
- Yeschecked 20 Sep 2026
- PDF editing
- Listed features include annotations, form filling, redaction, document signing, and managing file attachments.checked 11 Oct 2026
- PDF features
- Listed capabilities include encryption, signature validation, annotations, form filling, document editing, compression, and digital signing.checked 11 Oct 2026
- PDF standard
- The project says its PDF functionality is based on PDF Reference 2.0.checked 11 Oct 2026
- Product
- PDF4QT is an open-source PDF toolkit with desktop applications, command-line tools, and a C++/Qt PDF engine.checked 11 Oct 2026
- Purpose
- PDF4QT is an open-source PDF toolkit with desktop applications, command-line tools, and a C++/Qt PDF engine.checked 11 Oct 2026
- Rendering
- The project lists multithreading and hardware-accelerated rendering among its features.checked 11 Oct 2026
- Security policy
- GitHub reports that the project has no SECURITY.md policy and no published security advisories.checked 11 Oct 2026
- Text editing
- Yeschecked 20 Sep 2026
- Warranty
- The software is provided without any warranty.checked 11 Oct 2026
Where it runs
- Applications
- The suite includes PDF viewing, document page manipulation, and document comparison applications.checked 11 Oct 2026
- Linux downloads
- The README lists Flatpak and AppImage packages for Linux, and says the historical .deb package was discontinued.checked 11 Oct 2026
- PDF applications
- Its applications include a viewer, a document page organizer, and a tool for comparing two documents.checked 11 Oct 2026
- Supported platforms
- Windows,Linuxchecked 20 Sep 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
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