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Compare two PDF files, free

Compare two versions of a document word by word. You get a report listing every change, with both versions side by side: removed words marked red, added words marked green.

  1. 1Choose file
  2. 2Set options
  3. 3Download

Drop your PDFs here

2 PDFs → comparison report · up to 100 MB

Choose file You can also paste a file or screenshot with Ctrl+V.

    AI assistant

    Add a PDF above to ask questions about it, summarise it or give it a better name.

    Compare PDF in 3 easy steps

    1. Choose your file (2 PDFs → comparison report): drop it on this page or click “Choose file”.
    2. Check the options (smart suggestions can set them for you), then click “Compare PDFs”.
    3. Download the result. Everything runs in your browser, so your files are never uploaded.

    Why use GrovePDF

    • Free, with no signup, no watermark and no daily limit.
    • Private: your files are processed on your device, never on a server.
    • AI built in: smart suggestions and an assistant that answers questions about your PDF.
    • Works on any device with a modern browser, in nearly 110 languages.

    Updated · GrovePDF team

    Find every change between two versions

    Contracts, offers, theses and policies go back and forth, and changes get missed. Add the original first and the new version second. GrovePDF compares their text word by word, across all pages, and makes a report: a list of every change, then both versions side by side with removed words in red and added words in green.

    What it detects

    • Added, removed and changed words, numbers and punctuation.
    • Changes even when text has moved to another page, because the whole document is compared, not page against page.

    What it doesn't

    • Changes to pictures, colours or layout alone.
    • Scanned PDFs, which are pictures with no text. Run both files through OCR PDF first, then compare the results.

    Typical uses

    • Checking that the contract you're asked to sign is the version you agreed.
    • Seeing what a co-author changed in a draft.
    • Comparing two editions of terms and conditions.

    Comparing confidential documents online usually means uploading them. Here both files stay on your device. See also OCR, summarise, translate and compare PDFs.

    Compare PDF: questions and answers

    Which file is the original?

    The first file in the list is treated as the original and the second as the new version. Drag the files to swap them.

    What does it compare?

    The text, word by word, across all pages, so changes are found even when text moves to another page. Changes to pictures, colours or layout alone aren't detected.

    Can it compare scanned documents?

    Scans are pictures with no text. Run both through OCR PDF first, then compare the results.

    Which file is the original?

    The first file in the list. Drag the files to swap them.

    Can I compare a Word file with a PDF?

    Convert the Word file with Word to PDF first, then compare the two PDFs.

    Guide: OCR, summaries, translation and comparison: smarter ways to read PDFs