Compare PDF
Compare two PDF files side by side to find differences.
Comparing PDFs...
Do not close your browser. Wait until your files are uploaded and processed! This might take a few minutes.
How to use Compare PDF Files
Upload your original PDF (Version A) and modified PDF (Version B).
Click 'Compare PDFs' to analyze.
View side-by-side differences with highlighted changes and download the report.
Why choose PdfPix for Compare PDF Files?
100% Secure & Private
Unlike traditional web converters, all processing happens locally inside your browser. Your sensitive PDF files are never uploaded to any remote servers.
No File Size Limits
Because conversions run locally using your computer's CPU power, we don't impose any artificial file size caps, queue delays, or wait times.
100% Free Forever
Get full access to all features without subscriptions, credit card inputs, or registration walls. No branding watermarks added to your outputs.
Universal Compatibility
PdfPix runs smoothly inside any modern browser on macOS, Windows, Linux, iOS, or Android, without needing external applications or plugins.
Frequently Asked Questions
How does the PDF comparison work?
Our tool checks text characters and layout alignments, highlighting additions in green and deletions in red.
Is my business data safe?
Yes, the comparison is calculated locally on your own machine.
What formats can be compared?
We compare standard PDF documents. For best results, compare documents derived from the same source.