Sign a PDF Online

No. The document is rendered, signed and saved inside your browser tab. Nothing is sent to a server, and closing the tab leaves no copy behind.

It is an electronic signature of the simple kind — an image of your mark placed on the document — which many countries accept for everyday agreements. It is not a certificate-based digital signature: it does not identify you cryptographically or detect later changes. If a contract or authority asks for a qualified or certified signature, use a service that issues one.

Sign with a dark pen on plain white paper, photograph it in good light, and upload the photo with Remove white background on. Light grey turns transparent and the ink stays, so it sits on the page without a white box around it.

Yes. Click as many pages as you like; every click adds another copy of the current signature. To add initials or a date, make a new one on the Type tab (the Today button fills in the date) and place it the same way.

The handwriting face covers Latin letters only. Names in Korean, Japanese, Chinese and other scripts are drawn in your system font instead — or draw the signature on the pad.

The signature becomes an image on the page, so it cannot be moved again in a normal reader, but nothing locks the file. That is also why this kind of signature does not prove the document was unchanged after signing.