How to Use the Side-by-Side PDF Visual Split Compare
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1
Upload Revision A (Original Document) and Revision B (Modified Document).
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2
Choose your viewing mode: "Side-by-Side Synchronized View" or "Split-Wipe Slider View".
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3
Navigate pages in lockstep using the shared page navigator.
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4
Click "Highlight Visual Differences" to spot altered text, moved signatures, or modified numbers marked in vivid red/blue pixels.
Practical Example & Use Case
Common Real-World Scenario
Comparing an updated 10-page legal lease against the original version to catch unexpected clause edits or altered numbers before signing.
Technical Notes & Limitations
Browser Engine Architecture
Renders pages into paired HTML5 canvas viewports and runs image-differencing algorithms entirely client-side.
Frequently Asked Questions
Does it work with scanned PDFs?
Yes! Because it compares visual pixels rather than just text streams, it works on both digital vector PDFs and scanned image documents.