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Sign PDF

Put a drawn, typed or uploaded signature picture on a page of a PDF in your browser. A visual signature, not a digital certificate.

Sign PDF

A visual signature only

Sign PDF places a picture of your signature on the page. It is not a certificate-based digital signature: it does not prove who signed, and it does not stop later changes to the file.

Quick facts

Price
Free
Sign-up
Not required
Where it runs
On your device
Files uploaded
No
Limits
Up to 50 MB per input; Up to 1 file at once
Accepts
PDF, PNG, JPG
Produces
PDF
Updated

Sign PDF places a picture of your signature, drawn, typed or uploaded, on a page of a PDF in your browser. It suits everyday paperwork such as a lease form, a school permission slip or a timesheet that asks for a signature on the page. Pick the page, a corner or the centre, and a size, then download the signed copy. It is a visual signature only, not a certificate-based digital signature.

How to use

  1. Drop the PDF on the box, or click it to choose it. Its page count appears, and the page box starts at the last page.
  2. Under Your signature, choose Draw it and sign on the white sheet with a mouse, finger or pen; or Type it and enter your name; or Upload a picture of your signature as PNG or JPG.
  3. Type the page number, and choose the Place and the Size. The signature keeps half an inch from the edges of the page.
  4. Press Add signature, then Download the signed PDF and open it to check the position.

Examples

A test PDF called contract.pdf with 2 pages, signed with the typed name Alex Doe at Bottom right and Medium size, downloads as contract-signed.pdf. The second page now carries the name in a slanted style, 30% of the page width across, in its bottom right corner, and the first page is unchanged. Notice that the page box offered page 2 first, because signatures usually go on the last page.

Limits

One PDF at a time, up to 50 MB, as Quick facts shows; an uploaded signature picture may be up to 5 MB. The result is a visual signature only: it does not prove who signed, carries no certificate, and does not lock the file against later changes, so it cannot replace a qualified electronic signature where the law asks for one. There is no live preview of the page, so open the download to check the position. Password-protected PDFs are refused with a note. A photo of a signature on paper keeps its paper background. Phones have less memory than computers, so a large PDF may fail on a phone before this limit.

FAQ

Is this a legally binding digital signature?

No. It adds a picture of a signature, like signing a printout and scanning it. A certificate-based digital signature also proves the identity of the signer and seals the file, which this tool does not do. Ask the person who sent the document what kind of signature they accept.

Is my signature or my PDF uploaded?

No. Your browser draws the signature on this page, and a background worker writes it into the PDF. Neither the document nor the signature is sent to a server or kept after you leave.

Can I sign without a mouse or touch screen?

Yes. Choose Type it and enter your name with the keyboard, or choose Upload a picture of a signature you scanned earlier.

Install the app

Tap Share , then Add to Home Screen.

In the menu bar, choose File, then Add to Dock.

Open the browser menu, then choose Install or Add to Home screen.

This app's built-in browser cannot install websites. Open this page in Chrome or Safari to install it.