PDF4QT icon
PDF4QT icon

PDF4QT

Open-source PDF viewer and editor using Qt framework, featuring hardware-accelerated rendering, encryption, multithreading, text-to-speech, annotation tools, form filling, high-res monitor support, document compression, audio book conversion, and signature validation.

PDF4QT screenshot 1

Cost / License

  • Free
  • Open Source (MIT)

Application type

Platforms

  • Windows
  • Linux
  • Flathub
PDF4QT screenshot 1
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Adobe Acrobat Reader

View, annotate, and collaborate on PDFs, utilize cloud storage and freehand tools. Upgrade for editing and converting to other formats.

 
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Comments and Reviews

   
Top Negative Comment
BJ
1

Perhaps it has some value; however, when I used the app to re-arrange a PDF's pages, there was no obvious way to actually save what I had done. I searched through all the menus but...no luck. Maybe a decent help file or documentation would change my mind.

Jason Brown
Founder at Journalism Agenda
Replying to @BJ

Agree with "perhaps." Search function is not full text, limited to overview only, rendering it nearly useless for finding anything quickly. Loaded a 922 page PDF admirably quickly, so if the search function is improved, might be worth looking at again. One star for the app, one star for potential.

agreen03
0

While not a perfect replacement for Acrobat Pro, it does allow you to do basic pdf editing which is more than a lot of Open Source pdf tools out there.

Review from a new or low-activity account — shown here, but not counted in the app rating.
KimiBCN
0

It lacks many options and is not an alternative to Acrobat Pro. You can't OCR images, nor can you generate documents from a scanner.

RemovedUser
3

I wouldn't call it a "PDF Editor". It has very limited capabilities to actually edit the contents of the PDF files.

Review from a new or low-activity account — shown here, but not counted in the app rating.
Guest
1

useless, overloaded, fake, all smoke and no roast!

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Install from the command line

  • flatpak install flathub io.github.JakubMelka.Pdf4qt

Be careful what you paste into a terminal. Check what a command installs before running it.

What is PDF4QT?

PDF4QT is an open-source PDF viewer and editor based on the Qt framework. It includes a C++ library, PDF viewing and editing applications, and a command-line tool. It is compatible with Windows and Linux platforms. The software aims to provide a robust, open-source alternative to commercial PDF editors, with flexible licensing for both open-source enthusiasts and commercial users. It utilizes modern C++ features and multicore CPUs for efficient PDF editing and supports applications on Windows and Linux platforms. It also integrates the standard PDF 2.0 and supports high-resolution monitors.

PDF4QT offers features such as multithreading support, hardware-accelerated rendering, encryption, color management, optional content handling, and text layout analysis. It also includes signature validation, annotations and form filling, text to speech, advanced annotation tools, file attachments management, document compression, command-line tool, audio book conversion, internal structure inspector, document comparison, redaction, and document signing.

PDF4QT information

AlternativeTo Categories

Office & Productivity, System & Hardware

GitHub repository

  •  1,499 Stars
  •  150 Forks
  •  25 Open Issues
  •   Updated  
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Our users have written 5 comments and reviews about PDF4QT, and it has gotten 13 likes

PDF4QT was added to AlternativeTo by cel on and this page was last updated .