PDF Compare: Diff & Changes

Compare PDF files and spot every difference instantly. PDF Compare highlights changes between two PDF documents page by page — no uploads, no accounts, no ads watching what you read.

Whether you are checking contract revisions, reviewing redlines, comparing invoices, or proofreading a new draft against an old one, PDF Compare shows you exactly what changed.

▶ KEY FEATURES

• Compare two PDF files side by side
• Visual diff highlights added, removed and modified content
• Page-by-page navigation with zoom and pan
• Works fully offline — no internet required
• 100% private: files never leave your device
• Fast comparison engine optimized for large documents
• Clean, distraction-free Material Design interface
• No sign-up, no subscription, no cloud storage

▶ WHY PDF COMPARE

Most PDF diff tools upload your documents to a server. That is a problem when you are comparing contracts, legal filings, financial reports, medical records or anything else confidential. PDF Compare runs entirely on your phone or tablet — your files stay yours.

▶ PERFECT FOR

• Lawyers comparing contract versions and redlines
• Accountants reviewing invoices and statements
• Students proofreading essays and theses
• Writers tracking edits between drafts
• Engineers checking specification updates
• Translators comparing source and revised documents
• Anyone who needs to find differences between two PDFs

▶ HOW IT WORKS

1. Pick the first PDF
2. Pick the second PDF
3. Tap Compare — see every difference highlighted
4. Swipe through pages to review changes

That is it. No menus to learn, no settings to configure.

▶ PRIVACY FIRST

PDF Compare does not collect your documents, does not require an account, and does not need an internet connection to work. Comparison happens locally on your device using on-device rendering. Your PDFs are never uploaded anywhere.

Download PDF Compare and find every change in seconds.