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How to sign a PDF online for free

No printer, no scanner, no “please print, sign, and scan back.” Here’s the whole process — it takes about five minutes the first time, and about one minute after that.

  1. Step 1

    Upload your PDF

    Sign in to DoneDocs (free — Google login, 10 seconds) and upload the PDF you need signed: a contract, an offer letter, a rental agreement, anything.

  2. Step 2

    Place signature fields

    Drag signature, initials, date, and text fields onto the document exactly where they go. Date fields can auto-fill the signing date, locked — or let the signer pick their own date for things like birth dates.

  3. Step 3

    Send the signing link

    Enter your signer's email. They get a link, open it in any browser, and sign — no account, no app install, nothing to print or scan.

  4. Step 4

    Get the signed copy

    You'll be notified when they open it and when they sign. The signed PDF arrives by email with a Certificate of Completion, and a tamper-evident audit trail is kept automatically.

Try it now — free

3 documents a month, free forever. Your first signed PDF is minutes away.

Sign a PDF free

Common questions

Is a free online signature legally binding?

Yes — in the US under the ESIGN Act and UETA, and in the EU under eIDAS, an electronic signature is legally binding when you can demonstrate the signer's identity, their intent to sign, and that the document wasn't altered afterward. DoneDocs records all three: the signing event, the consent click, and a SHA-256 fingerprint of the final PDF in a hash-chained audit trail.

Does the other person need to create an account?

No — and that's the point. With DoneDocs, the signer just opens the link and signs. Requiring an account is the #1 reason signing requests stall.

Can I sign a PDF on my phone?

Yes. The signing page works in any mobile browser — draw or type your signature with your finger, tap through the fields, and submit.

What if I just need to sign something myself?

Upload it, place a signature field, and send the link to your own email address. It takes about a minute and you get the signed copy with its certificate.

Also useful: our free Merge PDF tool — combine PDFs in your browser before sending them for signature.