PDFLean

Review & Compare

Review and compare versions: highlight key passages, compare two versions page by page, spot pixel-level differences, and manage attachments.

Best for: Legal, procurement, project management

The usual order: open the two versions, compare them text- or pixel-level, highlight the differences, then attach notes and settle the revisions.

How to use

  1. 1Upload the document or two versions
  2. 2Highlight, mark up, or compare side by side
  3. 3Locate the differences and changes
  4. 4Export the review result

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Ready when you are

Runs in your browser whenever possible — no signup needed to start.

Open Compare PDF Files

PDFLean is a productivity tool and does not provide legal, medical, regulatory, or compliance advice. Review outputs before relying on them for regulated or high-stakes decisions.