Intelli File

Compare two PDF files and see what changed

Find the text differences between two PDFs.

Processed in your browser. Your file is never uploaded.

Original PDF

Drop your PDF here

Revised PDF

Drop your PDF here

How it works

  1. 1

    Drop the original PDF and the revised PDF.

  2. 2

    Click Compare.

  3. 3

    Review changed pages with added and removed lines highlighted.

Drop an original and a revised PDF to see which pages differ and exactly which lines were added or removed. Ideal for contracts, reports and manuscripts. The comparison runs in your browser and your documents stay private.

Reviewing a second draft by eye is slow and error-prone. Compare PDF extracts the text of both versions and shows page by page which lines were added or removed, so you can focus on what changed. Because everything happens locally, confidential drafts stay on your machine.

What people use it for

  • See what changed between two contract drafts.
  • Check a report revision before sign-off.
  • Verify a translated or reformatted document keeps the same text.

Tips for best results

  • Compare text-based PDFs; scans need OCR first.
  • Moved paragraphs show up as removed and added.
  • Large documents compare page by page, so changed pages are easy to find.

Your files never leave your device

Unlike most online PDF tools, Intelli File does not upload your documents to a server. Everything runs in your browser using your own device, so contracts, IDs and financial records stay private. Only a small usage counter is sent so we can apply daily limits.

Read how we handle privacy

What to do next

After this, you may want to OCR to Text, PDF to Text, or Merge PDF.

Frequently asked questions

What does it compare?+

The extracted text of each page. Layout, images and formatting changes are not detected.

Does it work on scanned PDFs?+

Scans have no text layer, so run OCR first to make them searchable, then compare.

Can the PDFs have different page counts?+

Yes. Extra pages are reported as added or removed.

Does it detect moved paragraphs?+

Moved text appears as removed in one place and added in another.

Is there a size limit?+

The normal plan limits apply to each of the two files.

More tools you might need

Merge PDFCombine several PDFs into one document.Compress PDFShrink PDF file size for email and sharing.Add page numbersNumber the pages of your PDF.Add watermarkStamp text across every page.