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Upload two PDFs and see a side-by-side line diff of their text content — additions, removals and changes are highlighted. 100% client-side.

Original (A)

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Revised (B)

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Frequently asked questions

Does it compare images or layout?

No — it compares the extracted text line-by-line. Layout, fonts and images are ignored.

Are scanned PDFs supported?

Only if they have a text layer. Run OCR PDF first if needed.