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Compare PDF
Professional-grade PDF tools, processed securely in your browser.
Drop PDF files here
or browse files from your computer
Max 50MBPrivacy prioritized
Guide
How to compare two PDFs
See text additions, removals, and layout differences between versions.
1
Upload document A and B
Typically old vs new revision.
2
Adjust comparison options
Ignore whitespace or case if those changes are noise.
3
Review diff and report
Use side-by-side or unified views and export an HTML report if needed.
FAQ
Compare PDF FAQ
Diff and review questions.
Scanned PDFs?
Text comparison needs real text layers—OCR first if files are image-only.
Pixel vs text diff?
This tool focuses on text-level differences; visual-only changes may differ.
Legal redlines?
Always corroborate automated diffs with human review for contracts.
Large documents?
Comparison time grows with page count; work on chapter slices if needed.