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How to Add a Free Electronic Signature to a PDF

Signing a single PDF yourself does not require a paid e-signature service β€” here's how to do it for free.

  1. Create your signature as an image

    Sign your name on paper and photograph or scan it, or draw it directly on a touchscreen using a free PDF tool's built-in signature pad β€” either method produces an image you can reuse.

  2. Or use a typed signature in a script font

    Most free "Fill & Sign" style tools let you type your name and render it in a cursive or script-style font as a quicker alternative to drawing or uploading an image.

  3. Open the PDF in a free Fill & Sign tool

    Adobe Reader's free Fill & Sign feature, Mac Preview, and many free online PDF tools all support adding a signature without needing the full paid version of any PDF software.

  4. Place and resize the signature on the page

    Drag the signature into position on the signature line or designated area, and resize it to a natural size β€” most tools let you save it for reuse on future documents too.

  5. Add the date next to your signature if the document requires it

    Many signature blocks expect a date alongside the signature. Use the tool's text box feature to type it in rather than leaving it handwritten on an otherwise digital document.

  6. Save the signed file and send it

    Save a copy of the signed PDF with a clear file name, and double-check it opens correctly and shows the signature in place before sending it on.

When a free tool is enough, and when it is not

For signing a document yourself β€” a form, a lease you are receiving, a simple agreement β€” a free signature tool that overlays an image or typed signature is generally sufficient and widely accepted. If you need to send a document out for multiple other people to sign, track who has signed, or generate a legal audit trail automatically, a dedicated e-signature platform is built for that workflow and a free image-based signature usually is not.

A simple inserted signature vs. a certificate-based digital signature

The signature described here is a visual mark placed on the page β€” an image or typed text β€” which is what most everyday documents expect. A separate, more technical category called a "digital signature" uses cryptographic certificates to verify identity and detect any tampering after signing, and is generally reserved for higher-stakes documents where that extra verification is specifically required.

Frequently Asked Questions

Is an inserted signature image legally the same as signing on paper?

In many jurisdictions, a visual electronic signature is legally recognized as equivalent to a handwritten one for most everyday documents, but requirements vary by jurisdiction and document type. For anything with significant legal weight, confirm the specific requirement first.

Can I reuse the same signature image on multiple documents?

Yes β€” most free tools let you save your signature once and reuse it across future documents without recreating it each time, which is one of the main conveniences of a free e-signature tool over signing and re-scanning paper each time.