Scrawlspace › PDF Tools

Compare PDF

Compare two versions of a PDF to see what changed, with removed words in red and added words in green, page by page.

How to use Compare PDF

Choose PDF for the Original and for the Changed version.
Pick Text to compare words, or Visual to compare how the pages look.
Use the arrows to jump between differences.

Frequently asked questions

How do I compare two PDF documents?

Add the original and the changed version. In Text mode, words removed are shown in red and words added in green, page by page.

Can I compare PDFs visually?

Yes. Switch to Visual to see the two versions' pages side by side, which helps spot layout or image changes.

Does it show added or removed pages?

Yes. Pages that exist in only one version are marked as added or removed.

Are my PDFs uploaded to compare them?

No. Both files are read and compared in your browser.

All tools

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Diff Checker: Compare two texts or files side by side. Line and word highlights, JSON mode, ignore whitespace, export a patch.
JSON Viewer: Paste JSON to validate, format, minify and explore it as a collapsible tree.
CSS Formatter: Beautify messy CSS or minify it for production. Handles nesting, @media and comments.
Developer Utilities: JWT decoder, Base64/URL/HTML encoder, hashes, UUID/ULID and password generators, timestamp converter, cron explainer and what's my IP.
PDF Tools: Edit, merge, split, compress, convert (Word, Excel, PowerPoint, JPG), OCR, sign, protect, unlock, redact and compare PDFs. Files stay on your device.
Image Tools: Compress, resize, crop and convert (HEIC to JPG, WebP, AVIF, Base64). Optimise and render SVGs. Generate QR codes, favicons and OG images.
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