Skip to all tools

Sign PDF Documents Online — Free and Private

Sign a PDF by drawing, typing or uploading your signature, then placing it exactly where it belongs. Add your one PDF and get a signed PDF — no upload, no signup, no watermark.

What you can do with Sign PDF

Draw with mouse or finger, or type your name

Or upload a picture of your signature

Place it anywhere on the page before you save

How to sign pdf documents in 3 steps

  1. Add the document

    Open the PDF that needs signing.

  2. Create your signature

    Draw it, type it, or upload a picture of it.

  3. Place it and download

    Click where it belongs and save the signed PDF.

Most edits to a PDF are last-minute: a missing signature, a highlight for a colleague, a page number on a contract. Sign PDF handles those on the spot without a desktop install, an account or a subscription. Annotated output is flattened into the page, so the recipient sees exactly what you saw regardless of the reader they use.

No upload

Your one PDF are read locally with JavaScript and WebAssembly — for this tool, nothing is sent to a server.

No signup

No account, no email, no credit card, no trial to remember.

No watermark

What you download is the real file — clean, unmarked and print-ready.

Sign PDF FAQ

What do I get back after using Sign PDF?

You get a signed PDF.

Is this tool really free?

Yes. Every tool here is free with no account, no trial and no watermark. There is no daily limit and no paywalled export — the whole toolkit is open source.

Are my files uploaded to a server?

No. Sign PDF runs in your browser with JavaScript and WebAssembly, so your one PDF are processed on your device and nothing is uploaded for this tool. That matters for contracts, invoices, IDs and anything under an NDA.

Does it work on a phone, and can I use it offline?

Yes. The page works in any modern browser on desktop, tablet or phone, and once it has loaded it keeps working with no connection.

Related PDF tools

PDF Editor Annotate, highlight, redact, comment, add shapes/images, search, and view PDFs PDF Form Filler Fill in forms directly in the browser. Add Watermark Stamp text or an image over your PDF pages. Page Numbers Insert page numbers into your document. Merge PDF Combine multiple PDFs into one file. Split PDF Extract a range of pages into a new PDF.

Every MusePDF tool

MusePDF ships 61 browser-based PDF tools. Browse the full homepage list.