Compare PDFs lets you place two PDF files side by side and identify differences in page count, text content, and structure. The tool highlights what changed between document versions — invaluable for contract review, proofreading, and quality assurance. Everything runs locally so sensitive documents remain private. Compare PDFs sits in FilePilot's pdf tools collection, so it is easy to move between this task and nearby tools such as Free Online PDF Tools, Free Online Image Tools, Merge PDFs. It is useful when you need to compare contract revisions to identify changed clauses; verify that a pdf export matches the original document; proofread by comparing draft and final versions of a report; check that redaction or editing didn't affect surrounding content. The workflow is straightforward: upload the first pdf (the original or baseline version); upload the second pdf (the revised or updated version); review the comparison results showing differences in content and structure. The work happens locally in your browser using client-side processing, which keeps your files on your device and gives crawlers a clear plain-text description of what this page does before the interactive app loads.
No. This tool keeps things practical in the browser by comparing extracted text page by page first.
Often yes. If needed, the compare flow falls back to OCR, which can take longer on large scanned files.
Yes. The summary shows each document page count and highlights changed or missing pages.