PDF Compare
Compare two PDFs side by side. Detect text differences with red/green highlights and visually overlay pages to spot layout changes. Both files stay on your device.
Original (A)
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Revised (B)
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Diff
Two ways to compare
Text diff extracts text from both PDFs using pdf.js and runs a word-level diff. Use this when you care about content changes regardless of layout.
Visual overlay renders both PDFs side by side, page by page, with a subtle red/green tint so you can spot moved or restyled elements.
Privacy
Both PDFs stay on your device. Comparison is done in the browser using pdf.js and a built-in LCS diff.