Compare PDF
View two PDF files side by side to easily spot differences.
Drop first PDF here
Upload the original PDF
Max file size: 100MB
Drop second PDF here
Upload the modified PDF
Max file size: 100MB
What is PDF Compare?
View two PDF files side by side to spot differences instantly. Compare document versions, highlight changes, and sync scrolling — all processed locally in your browser.
How to Use This Tool
Upload First PDF
Drop your original PDF on the left
Upload Second PDF
Drop the comparison PDF on the right
Compare & Analyze
Use Highlight Differences to spot changes
Frequently Asked Questions
How do I compare two PDF files?
Upload the first PDF on the left side and the second PDF on the right side. Both files will display side by side for easy comparison.
Can I highlight differences between two PDFs?
Yes, click the 'Highlight Differences' button to overlay a red highlight on pixels that differ between the two documents.
Is PDF comparison private?
Yes, all processing happens locally in your browser. Your PDF files are never uploaded to any server.
Can I sync scroll between the two PDFs?
Yes, scroll sync is enabled by default. Toggle it on or off using the 'Sync Scroll' button in the toolbar.
100% Private: All processing happens in your browser. Your files never leave your device.