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 types

Platforms

  • Windows
  • Linux
  • Flathub
2.0
Poor3 reviews
9likes
5comments
0articles

Features

Properties

  1.  Lightweight
  2.  Privacy focused

Features

  1.  Dark Mode
  2.  Ad-free
  3.  Hardware Accelerated
  4.  Sign PDF files
  5.  PDF annotation
  6.  PDF compression
  7.  Text to Speech
  8.  Portable
  9.  Rearrange PDF
  10.  QT Based
  11.  Support for Multiple threads

PDF4QT News & Activities

Highlights All activities

Recent activities

  • LEKTRA icon
    POX added PDF4QT as alternative to LEKTRA
  • Pdf2Screen icon
    cuecongress added PDF4QT as alternative to Pdf2Screen
  • Melisa_Safiyya liked PDF4QT
  • PDF Toolkit: Edit, Merge, Sign icon
    OrdinaryPerson added PDF4QT as alternative to PDF Toolkit: Edit, Merge, Sign
  • 	Lokaltools icon
    mlogictech added PDF4QT as alternative to Lokaltools
  • appPID icon
    luca96martinoia added PDF4QT as alternative to appPID
  • PDFEditor.onl icon
    PicShift added PDF4QT as alternative to PDFEditor.onl
  • ZapPDF icon
    BerkerGungor added PDF4QT as alternative to ZapPDF
  • agreen03 reviewed PDF4QT  

    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.

  • MorphPDF icon
    OperandOps added PDF4QT as alternative to MorphPDF

Comments and Reviews

   
Top Negative Comment
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 by a new / low-activity user.
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.

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.

Guest
1

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

Review by a new / low-activity user.
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

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.

Featured in Lists

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List by cel with 95 apps, updated

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

  • Developed by

    CZ flagJakub Melka
  • Licensing

    Open Source (MIT) and Free product.
  • Written in

  • Rating

    Average rating of 2
  • Alternatives

    109 alternatives listed
  • Supported Languages

    • English

AlternativeTo Categories

Office & ProductivitySystem & Hardware

GitHub repository

  •  1,342 Stars
  •  130 Forks
  •  53 Open Issues
  •   Updated  
View on GitHub

Our users have written 5 comments and reviews about PDF4QT, and it has gotten 9 likes

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