Cost / License
- Free
- Open Source
Platforms
- Linux
D
PDF4QT Alternatives
PDF4QT is described as 'Open-source PDF viewer/editor using Qt framework with C++ library, multithreading, hardware rendering, encryption, text layout, and form tools' and is a PDF Reader in the office & productivity category. There are more than 100 alternatives to PDF4QT for a variety of platforms, including Windows, Mac, Linux, Web-based and Android apps. The best PDF4QT alternative is SumatraPDF, which is both free and Open Source. Other great apps like PDF4QT are Okular, Foxit PDF Reader, PDF Arranger and PDFgear.
Alternatives list
Revolutionize PDFs for free! Try PDFPro: advanced editing, annotating, converting, signing. Premium tools, cloud support, secure.
Cost / License
- Free
- Proprietary
Application typeApplication types
Platforms
- Android
Hexye PDF Tools is a fast, privacy-focused online suite for editing PDFs — split, rotate, merge, and more — directly in your browser without uploading files.
Cost / License
- Free
- Proprietary
Platforms
- Online
Italy
EU
47 STDU Converter alternativesSTDU Converter helps you convert DjVu, TIFF, DCX and Comic Book Archive (CBR or CBZ) to PDF by two clicks. You need only select source file and choose location for destination file.
Cost / License
- Free
- Proprietary
Platforms
- Windows
+3
Discover Feather PDF, the ultimate PDF editor that prioritizes your privacy. Enjoy powerful editing features without data collection and gain lifetime access with a one-time payment.
Cost / License
- Paid
- Proprietary
Application typeApplication types
Platforms
- Online
- Software as a Service (SaaS)
Are you looking for an easy way to manage your PDFs? Our tool makes it effortless to merge files and extract pages with just a few clicks.
Cost / License
- Freemium
- Proprietary
Platforms
- Windows
+1
A privacy-first PDF tool suite that processes files entirely in your browser. Merge, split, and convert PDFs without ever uploading them to a server.
Cost / License
- Free
- Proprietary
Application type
Platforms
- Online
A powerful, privacy-respecting PDF editor built for Linux users. Edit, annotate, merge, and manage PDF documents—without subscriptions or cloud dependencies.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Linux
- Flathub
- Flatpak
United States
Revit view-graphics editor in one dockable panel — control colors, patterns, lines, transparency and visibility overrides without digging through dialogs. Eyedropper, custom palettes, view-template and per-element modes.
Cost / License
- Paid
- Proprietary
Platforms
- Windows
A free-floating 2D Canvas for processing multiple PDF files simultaneously.
Cost / License
- Free
- Open Source (MIT)
Application type
Platforms
- Online
- Mac
- Windows
- Linux
- Italy
- EU
SmallPDFfree offers a free online suite for all your big and small PDF needs. Access a suite of powerful, user-friendly tools that can merge, split, compress, convert, and edit your PDF files.
Cost / License
- Free
- Proprietary
Platforms
- Online
PDFSimplified is an online PDF editor. Edit text in PDF files, create PDFs from scratch or from a prompt, and edit or translate pages with AI.
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Online
