Compare PDF
Compare visual differences side-by-side between two of your PDF files.
First PDF Document
Select PDF file 1
Second PDF Document
Select PDF file 2
About Compare PDF Online
Compare two PDF documents online to find text and layout changes visual difference for free.
How to Use Compare PDF
Select First PDF
Upload the original or draft version of your PDF file.
Select Second PDF
Upload the revised or final version of your PDF file.
Highlight Changes
View the side-by-side comparison to instantly locate added, deleted, or modified text.
100% Secure & Private
Your files are processed locally in your browser. No data is uploaded to our servers.
Super Fast & Lightweight
Processing runs instantly using local WebAssembly, bypassing server queues.
Free & No Watermark
All PDF tools are accessible for free without watermark, limits, or registration.
Frequently Asked Questions (FAQ)
Our tool parses both PDF files and compares their layouts and characters to visually highlight differences so you do not have to spot them manually.
No, this comparison tool is free and has no usage limits.