Free PDF tools: edit, sign and merge PDFs online

Add text, signatures and images to a PDF, or combine several PDFs into one. No sign-up, no watermark, no daily limit.

🔒 Your files never leave your device: everything runs in your browser.

Free PDF editor: add text, sign and annotate

Fill in, sign, highlight or white-out, then rotate, delete or reorder pages.

Drop a PDF here or click to choose One PDF, up to 100 MB and 150 pages

How to edit a PDF

  1. Drop your PDF into the box above.
  2. Pick Text, Sign, Image, Highlight, White-out or Draw and click on the page. Drag anything to move it; select it and press ✕ to remove it.
  3. Use the buttons under each page thumbnail to rotate (⟳), move (↑ ↓) or delete (✕) pages.
  4. Click Download PDF.

Merge PDF files free online

Combine several PDFs into one file in seconds.

Drop PDF files here or click to choose Up to 20 files, 100 MB in total

    How to merge PDF files

    1. Drop your PDF files into the box above (or click it to choose them).
    2. Put them in the right order with the ↑ and ↓ buttons.
    3. Click Merge PDFs. The combined PDF downloads to your device.

    PDF Master Studio for Windows

    Everything the free tools do, plus the jobs a browser can't:

    • Edit the original text of any PDF
    • Fill forms, split and convert PDFs
    • Unlimited files and pages, fully offline

    Prefer to chat with your PDFs? Try AI Document Assistant.

    Get it from Microsoft

    Questions

    Is it safe to edit a PDF here?

    Yes. The PDF is opened and saved inside your web browser. It is never uploaded to a server, so nobody else can see it.

    Can I sign a PDF for free?

    Yes. Draw or type your signature, place it on the page and download the signed PDF. No account and no watermark.

    Can I change the existing text in a PDF?

    The free online editor adds new text, images, signatures and highlights, and can white-out content. To edit the original text of a PDF, use PDF Master Studio for Windows.

    How do I merge PDF files?

    Drop the PDFs into the Merge PDF tool, put them in order and click Merge PDFs. Up to 20 files and 100 MB in total.

    What are the limits?

    The editor opens one PDF at a time, up to 100 MB and 150 pages. Merge handles up to 20 PDFs and 100 MB. There is no daily limit. Password-protected PDFs can't be opened.