Visual Compare
Spot pixel-level visual differences between two PDF versions.
Original PDF
Drop or click
Modified PDF
Drop or click
Pages are rendered and compared pixel-by-pixel in your browser — files are never uploaded.
Catch every visual change between two versions of a document — moved text, swapped images, tweaked layout — not just text edits. Each page is rendered and compared pixel-by-pixel; changed areas are highlighted in red over a faded copy of the page, with the percentage of pixels changed per page.
Both files are rendered and diffed entirely in your browser, so even confidential drafts never leave your device. For a line-by-line text diff instead, use the Compare PDF tool.
How it works
- 1Select or drag in your files
- 2Choose your options and click “Visual Compare”
- 3Download the result — everything ran in your browser
Frequently asked questions
How is this different from Compare PDF?
Compare PDF diffs the extracted text. Visual Compare diffs the rendered pixels, so it also catches layout shifts, image changes, and formatting differences that don't change the words.
What if the two PDFs have different page sizes?
Pages whose dimensions differ are flagged as changed (they can't be pixel-aligned). Same-size pages are diffed precisely.
Are my PDFs uploaded to compare them?
No. Your file is processed entirely in your browser using JavaScript — it is never uploaded to a server, so nothing can be stored, leaked, or read by anyone else.