Alternatives

PDF4QT alternatives for AI agents.

Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.

Current skill

PDF4QT

Open source PDF editor.

100
Quality
92
Trust
1.4K
Stars
#1

Qpdf

Similarity 139Trust 94Excellent 100

qpdf: A content-preserving PDF document transformer

5.1K starsJun 13, 2026 pushdocument-processingC++PDF
$ npx skills add qpdf/qpdf
#2

Diff Pdf

Similarity 138Trust 91Excellent 100

A simple tool for visually comparing two PDF files

4.3K starsMar 28, 2026 pushdocument-processingC++PDF
$ npx skills add vslavik/diff-pdf
#3

Sumatrapdf

Similarity 134Trust 92Excellent 100

SumatraPDF reader

17K starsJun 15, 2026 pushdocument-processingCPDF
$ npx skills add sumatrapdfreader/sumatrapdf
#4

React Pdf

Similarity 134Trust 95Excellent 100

Display PDFs in your React app as easily as if they were images.

11K starsJun 11, 2026 pushdocument-processingTypeScriptPDF
$ npx skills add wojtekmaj/react-pdf
#5

Sioyek

Similarity 134Trust 94Excellent 100

Sioyek is a PDF viewer with a focus on textbooks and research papers

9.6K starsJun 13, 2026 pushdocument-processingCPDF
$ npx skills add ahrm/sioyek
#6

Xournalpp

Similarity 133Trust 98Excellent 100

Xournal++ is a handwriting notetaking software with PDF annotation support. Written in C++ with GTK3, supporting Linux (e.g. Ubuntu, Debian, Arch, SUSE), macOS and Windows 10. Supports pen input from devices such as Wacom Tablets.

15K starsJun 15, 2026 pushdocument-processingC++PDF
$ npx skills add xournalpp/xournalpp
#7

PdfDing

Similarity 131Trust 94Excellent 100

Selfhosted PDF manager, viewer and editor offering a seamless user experience on multiple devices.

1.7K starsJun 12, 2026 pushdocument-processingPythonPDF
$ npx skills add mrmn2/PdfDing
#8

Caj2pdf Qt

Similarity 129Trust 82Strong 73

CAJ 转 PDF 转换器(GUI 版本)

1.8K starsMar 31, 2024 pushdocument-processingC++PDF
$ npx skills add sainnhe/caj2pdf-qt
#9

Pdf2htmlEX

Similarity 128Trust 85Excellent 86

Convert PDF to HTML without losing text or format.

5.5K starsJul 17, 2025 pushdocument-processingHTMLPDF
$ npx skills add pdf2htmlEX/pdf2htmlEX
#10

OCRmyPDF

Similarity 128Trust 98Excellent 100

OCRmyPDF adds an OCR text layer to scanned PDF files, allowing them to be searched

34K starsJun 12, 2026 pushdocument-processingPythonPDF
$ npx skills add ocrmypdf/OCRmyPDF
#11

Ng2 Pdf Viewer

Similarity 128Trust 90Excellent 93

📄 PDF Viewer Component for Angular

1.3K starsFeb 5, 2026 pushdocument-processingTypeScriptPDF
$ npx skills add VadimDez/ng2-pdf-viewer
#12

Obsidian Pdf Plus

Similarity 128Trust 89Excellent 87

PDF++: the most Obsidian-native PDF annotation & viewing tool ever. Comes with optional Vim keybindings.

2.3K starsAug 30, 2025 pushdocument-processingTypeScriptPDF
$ npx skills add RyotaUshio/obsidian-pdf-plus
#13

Stirling PDF

Similarity 127Trust 91Excellent 100

#1 PDF Application on GitHub that lets you edit PDFs on any device anywhere

81K starsJun 16, 2026 pushdocument-processingTypeScriptPDF
$ npx skills add Stirling-Tools/Stirling-PDF
#14

React Pdf

Similarity 127Trust 95Excellent 100

📄 Create PDF files using React

17K starsJun 9, 2026 pushdocument-processingTypeScriptPDF
$ npx skills add diegomura/react-pdf
#15

Chineseocr Lite

Similarity 127Trust 98Excellent 100

超轻量级中文ocr,支持竖排文字识别, 支持ncnn、mnn、tnn推理 ( dbnet(1.8M) + crnn(2.5M) + anglenet(378KB)) 总模型仅4.7M

12K starsMay 18, 2026 pushdocument-processingC++OCR
$ npx skills add DayBreak-u/chineseocr_lite
#16

BibliotecaDev

Similarity 127Trust 96Excellent 100

📚 Biblioteca de livros essenciais da área da programação. (Confira o meu novo projeto `SendScriptWhatsapp`)

14K starsMay 3, 2026 pushdocument-processingPDFClaude Code
$ npx skills add KAYOKG/BibliotecaDev

How to choose

When should you switch?

Use an alternative when it has a clearer install path, higher trust score, fresher maintenance, or better platform fit for your current agent stack. Keep PDF4QT if it already passes your workflow test and repository review.

Next step

Compare top candidates side by side

Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.