FilePDQ

Compare PDFsFREE

See which pages changed between two versions of a PDF, line by line.

  1. 1 Add
  2. 2 Convert
  3. 3 Download

Drop the original PDF, then the changed one

PDF. Up to 200 MB each, 50 at once.

Stays on your device

Questions about Compare PDFs

Is Compare PDFs free?

Yes. It is free to use, with no sign-up, no watermark and no limit on how often.

Are my files uploaded?

No. It runs in your browser, so your files stay on your device and are never sent to us or anyone else. Privacy notice

Which files can I use?

PDF in, Report, TXT out. Up to 200 MB per file, 50 files at a time, 2,000 pages.

Step by step, and if something goes wrong

Steps

  1. Add the original PDF first, then the changed version.
  2. Select Compare.
  3. Read the pages that differ on screen, or download the full line by line report.

If something goes wrong

  • Pages are compared in order, so an inserted page makes later pages show as changed.
  • Scans have no text; for those, only pages that look different are listed.