How to sign a PDF
- Choose the PDF.
- Draw your signature in the box. Use Clear to try again.
- Pick the page (a number, or
last, the default), the position and the width. - Click Sign & download.
Where the signature goes
The signature is placed as a transparent image about 14 mm above the bottom edge, on the left, centre or right. The default width of 150 points is about 53 mm, a typical handwritten signature; you can choose from 40 to 400 points. The rest of the page isn't changed, and form fields and bookmarks are kept.
Tips for a clean signature
- Sign large across the pad; it's scaled down, so small shaky strokes look neater.
- On a laptop, a touchpad is harder than a mouse; a phone with your finger often gives the best result.
- Sign a copy, not your only original, and check the result before sending it.
Legal note
This adds an image of your signature. That is fine for everyday documents such as offer letters, internal forms and agreements where the other side accepts a scanned signature. Documents that legally require a certificate-based digital signature, as many tax and government filings do, must be signed through those services.