JakubMelka/PDF4QT
Open source PDF editor. observed · 2026-08-28
Health v2 · maintenance only
87/100
- Activity 99
- Release rhythm 64
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 133.5
- age_days: 2619
- days_rel: 80
- days_push: 11
- n_releases_24m: 5
Adoption not part of the score
1459 stars · 140 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
PDF4QT is an open-source PDF editor, viewer, and rendering library written in C++ with Qt, implementing PDF 2.0 functionality. It ships a C++ library, several GUI applications, and a command-line tool for viewing, editing, signing, and manipulating PDF documents.
Use cases
- edit pdf documents
- view pdf files on windows and linux
- fill and sign pdf forms electronically
- convert pdf to audiobook with text to speech
- compare two pdf documents
- manipulate pdf pages from the command line
- inspect internal pdf structure
- compress and optimize pdf files
When to choose
- you need a free alternative to commercial PDF editors
- you want a C++ PDF rendering library to embed in your own application
- you need PDF signing, encryption, or form filling on Windows or Linux
- you want scriptable PDF processing via a command-line tool
When to avoid
- you need full XFA form support (only simple readonly static XFA is supported)
- you need a web-based or mobile PDF solution
- you require PDF 2.0 completeness as it is still a work in progress
Facets
application · maturity active
pdf pdf-viewer gui cli cryptography ocr pdf desktop-applications files cross-platform windows cpp pdf-editor pdf-rendering pdf-library digital-signatures form-filling qt linux
2 sources
- readme: https://github.com/JakubMelka/PDF4QT · fetched 2026-08-28 · 73bcf2fd79b4
- homepage: https://jakubmelka.github.io/ · fetched 2026-08-29 · 05bb3b28e87e
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| JakubMelka/PDF4QT | main | 87 |
For agents
markdown · JSON · MCP: product_card(name="JakubMelka/PDF4QT")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem