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๐Ÿ” PDF Compare

Compare two PDF files side by side with synchronized scrolling. Visual page-by-page comparison. 100% in your browser.

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PDF A (Original)

Click to select

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PDF B (Modified)

Click to select

โœ…Compare two PDFs side by side
๐ŸŽฏSpot differences between contract versions
๐Ÿ”’100% private โ€” runs in your browser

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Frequently Asked Questions

Both PDFs are rendered to images side by side with synchronized scrolling. Pages are compared pixel-by-pixel and a badge indicates if each page pair is identical or different.
The tool renders all pages from both PDFs. Pages beyond the shorter PDF's count are marked as "missing" in the other column.
No. Both PDFs are rendered locally in your browser. Nothing is uploaded.
Each page pair is marked identical or different.
Yes โ€” pages are rendered and compared pixel by pixel.
No. All processing happens locally in your browser using pdf-lib and pdf.js.
There is no hard limit. Very large PDFs (100MB+) may slow down your browser.

PDF Compare: Compare two PDFs side by side

PDF Compare lets you compare two pdfs side by side. Upload two PDFs and get a page-by-page comparison โ€” all processed locally in your browser, with no uploads and no sign-up.

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Spot differences between contract versions

Spot differences between contract versions. This is one of the most common reasons people reach for PDF Compare โ€” and it handles the job in seconds, entirely in your browser.

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Compare revised and original documents

Compare revised and original documents. This is one of the most common reasons people reach for PDF Compare โ€” and it handles the job in seconds, entirely in your browser.

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Verify changes across PDF drafts

Verify changes across PDF drafts. This is one of the most common reasons people reach for PDF Compare โ€” and it handles the job in seconds, entirely in your browser.

Everything You Need in a PDF Compare

Powerful features that make PDF Compare fast, private, and free.

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Instant Processing

PDFs are processed in your browser the moment you upload.

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100% Private

Your PDFs never leave your device โ€” no server uploads.

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Text-Based Output

Conversions produce real, searchable, selectable text.

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All-in-One PDF Suite

Merge, split, edit, annotate, convert โ€” 25+ PDF tools.

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Free Forever

No sign-up, no watermarks, no page limits.

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Cross-Platform

Works on Windows, Mac, Linux, iOS, and Android.

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100% Private
Files never leave your browser
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Browser-Based
No installs, no uploads
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Free Forever
No sign-up, no watermarks
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No Signup
Start instantly, no account

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