Supported files and outputs
Accepts two PDF files and compares their rendered pages to highlight visible differences.
Compare PDF
See exactly what text changed between two PDFs — entirely in your browser.
First PDF
Second PDF
Two versions of a contract, a report that went through a round of edits, a document you suspect was quietly changed — upload both PDFs and see exactly which text was added or removed between them, line by line.
1
Upload both PDFs
2
Run the comparison
3
Review the changes
Limitations and quality
The comparison focuses on visual page changes; hidden metadata, accessibility structure, and semantic meaning are not independently verified.
Practical example
Review a revised contract or policy and quickly locate pages that changed between two PDF versions.
Troubleshooting
Compare files with similar page sizes for the clearest result. If pages are missing, confirm both PDFs open correctly and contain the expected page count.
Processing happens in your browser. Keep the original file until you have opened and checked the downloaded result.
Frequently Asked Questions
Does this compare formatting and layout, or just text?⌄
It compares the text content of each document — additions and removals — rather than visual layout differences.
Does anything get uploaded to compare the files?⌄
No — both PDFs are read and diffed entirely in your browser; neither file is sent anywhere.