DeskTray

Compare PDF Files

Find what changed between two versions of a contract, agreement or report. See added and removed words page by page, or compare the pages visually.

Runs in your browser. Nothing is uploaded Free, no sign-up Works on mobile
Original PDF
Choose the original PDF
or drag and drop here
Changed PDF
Choose the changed PDF
or drag and drop here

How to compare two PDFs

  1. Choose the original PDF and the changed PDF.
  2. Read the summary and the highlighted word changes on each page.
  3. Switch to Visual changes to compare pages side by side or as a difference overlay.

Features

  • Word-level highlights of added and removed text
  • Summary of changed pages and word counts
  • Side-by-side page view
  • Pixel-difference overlay for images, signatures and layout
  • Scan all pages for visual changes

Frequently asked questions

Can it compare scanned PDFs?

Scanned PDFs have no text layer, so use Visual changes, which compares the page images. To compare the words, run both files through OCR PDF first.

Why does a whole page show as changed after one line was added?

Pages are compared by page number. If added text pushes content onto the next page, the following pages change too. The word list still shows exactly which words moved.

What does the difference overlay show?

A faded copy of the original page with changed pixels in colour: green where something appears only in the changed PDF, red where something was removed or moved.

Is my file uploaded anywhere?

No. Everything happens inside your browser, so bank statements, ID proofs, contracts and forms stay on your device.

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