How to sign a PDF
- Drop the PDF you need to sign.
- Draw your signature or type your name, and choose the page.
- Click or drag to place it, then click “Sign PDF” and download the signed file.
Frequently asked questions
Is this a legally valid signature?
This adds a simple electronic signature: a picture of your signature on the page, much like signing a printout. That is enough for many everyday letters and forms, but it is not a qualified or advanced digital signature — it does not prove who signed or lock the file against changes. If you later need to prove that the signed file existed unchanged at a given moment, a certification service such as instantproof.legal can timestamp and seal it.
Is my signature uploaded or saved?
No. You draw it in your browser, it is placed into the PDF in your browser, and it is gone when you close the tab. Neither the PDF nor your signature is sent anywhere.
Can I sign on my phone?
Yes. Draw with your finger in the signature box, then tap the page preview to place it.
Can I sign several pages or add initials?
Sign one page, download the result, then load the signed file again to add the next signature or initials.
Can I add the date?
Yes. Tick “Add the date under the signature”; today’s date is filled in and you can change the text.