PDF4QT

PDF4QT

PDF4QT is an open-source PDF library for Qt that enables Qt applications to read and write PDF files. It provides an easy API for PDF generation and manipulation.
PDF4QT image
pdf qt opensource library

PDF4QT: Open-Source PDF Library for Qt

An open-source PDF library for Qt, enabling read and write access to PDF files, with an easy API for PDF generation and manipulation.

What is PDF4QT?

PDF4QT is an open-source C++ library that provides PDF support for applications built with the Qt framework. It allows developers to read, create, and manipulate PDF files from Qt applications without needing external PDF libraries.

Some key features of PDF4QT include:

  • Reading existing PDF files
  • Creating new PDF documents
  • Adding text, vector graphics, images, and annotations to PDFs
  • Text extraction from PDF files
  • PDF form handling
  • PDF encryption and decryption
  • Based on Qt5 and works across platforms like Windows, MacOS, and Linux

As an open-source library, PDF4QT is free to use and distribute. It integrates tightly with Qt applications due to its native C++ implementation and Qt-style API. If you need PDF capabilities for a Qt-based desktop or mobile application, PDF4QT is a lightweight yet full-featured solution to consider.

PDF4QT Features

Features

  1. Qt-based PDF library
  2. Supports reading/writing/modifying PDF files
  3. Render PDF pages to QImages
  4. Text extraction
  5. PDF forms support
  6. PDF annotations support
  7. PDF digital signatures
  8. PDF encryption/decryption
  9. PDF merging/splitting
  10. Font embedding

Pricing

  • Open Source

Pros

Open source

Easy to integrate with Qt apps

Good documentation

Active development

Full PDF feature support

Cons

Limited adoption outside of Qt ecosystem

Not as full-featured as some commercial libraries

Lacks some advanced PDF features like XFA forms

Only supports Qt 5


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