Document Compare Free Online: Compare Two Scans
Compare two scans or document photos and highlight visual changes directly in the browser with a downloadable diff view.
Document Compare is useful when revisions, proofs, or resubmitted scans need a fast visual check before filing, approval, or handoff. It helps surface changed regions without leaving the browser or sending the pages to a remote comparison service.
How to Use It
- Upload your document image and wait for the local preview to load.
- Adjust the settings: Upload the original page, add the revised page as the second image, tune highlight sensitivity, and export the visual diff.
- Download the result: Download the processed file directly to your device.
Controls and Options
Use the cleaner page as the first upload when possible, then raise sensitivity only until the changed regions appear without highlighting paper texture noise.
Formats and Output
Input: two JPG, PNG, or WebP document images. Output: PNG, JPG, or WebP. The exported file keeps the first page and overlays highlighted differences from the second upload.
Frequently Asked Questions
Does this compare two document images side by side?
Yes. Upload the first page, then add the second page as the comparison image. Pixlane returns the first page with visible difference highlights on top.
Can I use it for proofs and revision checks?
Yes. Document Compare is useful for proofing, scan verification, and spotting changed regions between two versions of a page.
Does it upload the documents?
No. The comparison runs locally in your browser and keeps the files on device.
Is Document Compare free to use?
Yes. Document Compare on Pixlane is free and browser-based.
Are my files stored on a server?
Supported media processing runs on your device, and file contents are not uploaded for processing. Site analytics and the assistant are separate.
How long does processing take?
Processing runs directly in your browser. Completion time varies with the operation, file size, browser, and device.
What is the maximum file size?
There is no server upload limit because processing stays on this device. Very large files can still be constrained by available browser and device memory.
Does this tool work on mobile devices?
Pixlane runs in supported browsers on desktop and mobile; availability varies by required APIs. No app download is needed.