pdf-diff

A tool for visualizing differences between two pdf files.

PDF Diff Viewer, a side-by-side, visual highlight, sync-scroll, PDF comparer, written in Python. Open source, mostly powered by PyMuPDF and Tkinter. Optional support for git diff, for a better comparison algorithm.

This tool is used to compare PDF files. With the pdf-comparator, you can streamline your PDF document analysis process and ensure the accuracy and consistency of your documents.

Compare PDF documents using PDF Miner and print out the differences as HTML documents

Compare anything. Understand what changed. A local-first desktop diff tool for files, folders, JSON and images. Docs: https://codeaesthetic.github.io/twinscope-website/

Comparing PDFs can be useful in various scenarios, such as document version control, content verification, and collaboration.

Exposing https://github.com/JoshData/pdf-diff/ as FastAPI service.

Slab — local-first PDF workstation. 30+ ops (merge, OCR, redact, sign, bates, flatten, diff, sanitize) + native Tauri desktop app for macOS/Windows/Linux. Runs on-device AI. Zero cloud, zero telemetry. [Private — commercial product in development]

🔍 Compare two PDF files online free — text, visual, layout and page-by-page diff with highlighted added, removed and changed content. No Adobe, 100% in your browser.

Semantic PDF and DOCX diff CLI and GitHub Action for deterministic document regression testing in CI.

Python Check Similarity PDF

JavaScriptでローカル実行できるオンライン差分チェッカー

工程图纸智能差异分析工具：选定两版 PDF 图纸一键比对，自动识别尺寸/标注/几何变更并生成分类变更清单，支持多模态 AI 语义解读与交互式差异可视化，单文件 EXE 开箱即用。

Official feedback repository for ToCompare — report bugs, request features, and share ideas.

Compare two PDFs in your browser and see every changed clause highlighted on the page. No upload, no page cap, no account.

Compare PDF revisions, monitor PDF URLs, or extract Markdown and JSON with OCR, tables, and page-level evidence.

kogo (校合) — local, layout-aware PDF diff for revisions: CJK-aware text, figures, equations, annotations, and style changes, via CLI, web UI, or Docker.

A free, 100% private client-side PDF comparison and text conversion tool powered by WebAssembly. Spot differences and redline document changes directly in your browser.

PDF Compare Free is a modern desktop application designed to compare two PDF files and highlight differences quickly and clearly. It features a clean side-by-side interface, real-time progress tracking, and smart text diff detection.