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Tool / document utility

Compare PDF

Compare two PDFs page by page using visual previews and extracted text.

Files stay in this browser for this workflow. Nothing is sent to our servers here. Clearing or refreshing the tab removes the working copy.
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A little more context

About Compare PDF

Use Compare PDF to review two PDF revisions when you need page-by-page context and extracted-text differences in one browser workspace.

What is Compare PDF?

Compare PDF helps review two document revisions by combining page previews with extracted-text differences. It is useful for a first pass on reports, agreements, or exports that may have changed.

When this tool helps

  • Check whether a revised contract or report changed.
  • Review two exports before choosing which one to share.
  • Find pages that have different text or exist in only one version.

What happens to your file?

Comparison is performed in your browser. The two PDFs stay in the current tab and are not uploaded to the server by this workflow.

Features in this tool

  • Compare two PDFs page by page.
  • Use visual previews alongside extracted text.
  • Identify pages that exist in only one version.

Common problems and solutions

  • A visual change was not reported: Image-only changes may have identical extracted text because this is not pixel-perfect image diffing.
  • The documents have different page counts: Review the pages marked as existing in only the first or second document.
  • The comparison is incomplete: Try text-based PDFs with readable page content and inspect the original files for complex graphics or scans.

Tips and limitations

  • Comparison uses rendered previews for context and extracted text for the result; it is not pixel-perfect image diffing.
  • A page with image-only changes may show the same extracted text.
  • Keep both originals so you can inspect a difference in the source applications.

Frequently asked about Compare PDF

Does comparison detect every visual difference?

No. It reports extracted-text differences and gives visual previews, but it does not perform pixel-perfect image diffing.

Can the PDFs have different page counts?

Yes. The results identify pages that exist only in the first or second PDF.

Are the files uploaded?

No. The comparison runs in the browser.

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