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Upload two PDFs and see exactly what changed. Differences are highlighted in red with a per-page diff percentage.
Compare two PDF files side by side with visual diff highlighting — no signup, no watermarks, no file limits. Upload two versions of a document and instantly see every change highlighted in red. Unlike online PDF comparison tools, this runs entirely in your browser. Your documents never leave your device.
This tool renders each page of both PDFs as high-resolution images, then compares them pixel by pixel. Any difference — whether it's a text edit, moved image, font change, or layout shift — is highlighted in red on a diff overlay. You also get a percentage score showing how much each page changed, so you can quickly find the pages that matter.
No. Both PDFs are processed entirely in your browser using modern web APIs. Nothing is uploaded, stored, or sent anywhere. Your documents remain completely private on your device. This makes it safe for confidential contracts, legal documents, and sensitive business files.
This tool detects any visual change between two PDFs — text edits, moved elements, added or removed images, font changes, color changes, layout shifts, and more. Even subtle changes like a shifted margin or different line spacing will show up in the diff view. It works great for reviewing contract revisions, design iterations, and document versions.