Compare PDF
View two PDFs and compare rendered pages and extracted text.
Free · No upload · 100% on your device
Compare two PDFs
Choose the two PDFs you want to compare.
No file-size or page limits. Nothing is uploaded.
100% on your device
How to use Compare PDF
- Choose the two PDFs, or drop it on the page.
- Adjust the settings in the side panel. The preview updates as you go.
- Select “Compare PDFs”.
- Download the result. Your original file is left unchanged.
Private by design. Your files are processed in this browser tab and are never uploaded to KittySuite.
About Compare PDF
Choose two PDFs and inspect corresponding pages side by side. Enter a page number that exists in both documents. A third image highlights changed rendered pixels, while a text report shows the locally extracted text from each page. The report can be downloaded.
Visual differences include antialiasing, font rendering and shifted layout, so they are not a semantic change count. Text comparison can miss differences in scans or produce misleading order in complex columns. A page inserted near the beginning shifts later page correspondence; compare the appropriate documents and use the side-by-side view as the final check.
Compare PDF: frequently asked questions
How do I compare two PDFs?
Choose both PDFs and a page number that exists in each. You see the pages side by side, an image highlighting changed pixels and a report of the text on each page.
Can I download the comparison?
Yes. The text report can be downloaded.
Why are small differences highlighted everywhere?
Pixel comparison also catches font smoothing and slightly shifted layout, so treat it as a visual guide rather than a count of edits.
What if a page was added in one version?
Later pages shift, so compare the matching page numbers in each document.