Compare PDFs
Compare two PDF documents. Highlight differences between versions.
Drag and drop files here, or click to browse
or
Serves as the baseline/original layout
Drag and drop files here, or click to browse
or
Contains edits, additions, deletions, or structural shifts
Designed for Trust and Speed
PDFRunway handles your documents locally, keeping data secure and processing lightning-fast.
Easy to Use
Simple 3-step processes designed for speed, clarity, and non-technical users.
Fast & Reliable
High-performance local compilation keeps processing fast, secure, and responsive.
100% Secure
Your documents never leave your browser. Zero uploads, 100% client-side privacy.
Works Anywhere
Access the full suite on any browser, system, desktop, or mobile device.
How to Use
Follow these three simple steps to process your file in seconds.
Upload Two PDFs
Upload the original and modified PDF documents.
Compare Documents
View differences highlighted in side-by-side or overlay mode.
Export Results
Download a comparison report or annotated PDF.
About This Tool
Compare PDFs analyzes two PDF documents and highlights the differences between them. Perfect for reviewing document revisions, checking contract changes, or verifying edits.
View documents side-by-side or in overlay mode with differences highlighted. The tool identifies text changes, additions, and deletions.
All comparison happens in your browser, ensuring your documents remain private.
Use Cases
Contract Review
Compare contract versions to identify changes.
Document Revision
Review edits between document versions.
Quality Assurance
Verify that only intended changes were made.
Frequently Asked Questions
Have questions? Find quick answers about this tool here.
Text additions, deletions, modifications, and formatting changes.
Scanned documents should be OCR processed first for text comparison.
Yes, overlay mode shows visual differences between pages.