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Stirling-PDF vs UPDF

Side-by-side comparison for macOS

Stirling-PDF

8.0
Utilities

PDF utility

UPDF

5.0
Productivity

PDF editor

Metric Stirling-PDF UPDF
Category Utilities Productivity
AI Score 8.0 5.0
30-day Installs 198 66
90-day Installs 483 219
365-day Installs 990 916
Version 2.10.0 2.5.1
Auto-updates No Yes
Deprecated No No
GitHub Stars 75.2K 9
GitHub Forks 6.4K 2
Open Issues 431 -
License NOASSERTION GPL-3.0
Language TypeScript Python
Last GitHub Commit 1mo ago 11y ago
First Seen Nov 29, 2025 Aug 27, 2023

Reviews

Stirling-PDF

Stirling-PDF is a versatile, open-source PDF utility that allows users to edit, annotate, and manipulate PDF files locally. Its web-based approach ensures cross-platform compatibility, making it ideal for users needing a reliable PDF tool.

Stirling-PDF is a local web application designed for editing and manipulating PDF files.

Pros

  • + Open-source and cross-platform
  • + Versatile PDF editing and manipulation features
  • + Works offline as a local web application

Cons

  • - Lacks auto-update functionality
  • - Historical installation issues on Windows

UPDF

UPDF is a PDF editor that offers precise control over PDF documents, ideal for users needing advanced editing features. It supports annotations, form filling, and text manipulation, making it a robust tool for document management.

UPDF is a macOS application that allows users to edit, annotate, and manage PDF files.

Pros

  • + Free and open-source
  • + Cross-platform support
  • + AI assistant for handling complex PDF tasks

Cons

  • - Inactive development on GitHub
  • - Outdated user interface and features