Compare Two PDF Documents
Compare two versions of a PDF side-by-side to highlight added, removed, and unchanged text lines and metadata differences.
1. Select Document Input
Upload your own file(s) or load a real sample document to test Compare PDFs immediately.
How to Use Compare PDFs
- 01.Upload Original PDF (Document A) and Revised PDF (Document B), or click "Load Sample v1 & v2 Pair".
- 02.Inspect highlighted additions (green) and removals (red) line by line.
- 03.Download a formatted PDF Comparison Report summarizing all detected changes.
Document Processing & Privacy Notes
Uses Longest Common Subsequence (LCS) line diffing alongside visual page previews and downloadable diff audit PDF.
Both PDFs are compared 100% locally in your browser.
Frequently Asked Questions — Compare PDFs
Can I test Compare PDF immediately without uploading two files?
Yes! Click "Load Sample v1 & v2 Pair" to load Revision 1.0 and Revision 2.0 of our contract and see the diff engine in action.
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