Sign a PDF
Draw, type or upload your signature, put it where it belongs on any page, and save the signed PDF.
Files never leave your device
This adds a picture of your signature to the PDF. It is a visual signature, not a certified digital (cryptographic) signature. Some official uses require a certified digital signature, so check what the person or office asking for the signature accepts.
1. Create your signature
Draw with your finger or mouse. Cannot draw? Use the Type tab.
Move it up if paper marks remain, down if the pen lines get thin.
Signature ready. Place it on a page below.
2. Place it on the page
Add initials or a date (optional)
Drag to move. Drag the round handle at the corner, or pinch with two fingers, to resize. Tap a picture to select it; use the red cross to remove it. You can place as many as you like, on any page.
Working…
Keep this tab open. Large files can take a little while on a phone.
Done
To send it on WhatsApp or Gmail, download it first, then attach it in the app.
How to use it
- Step 1: Tap the box and choose the PDF you need to sign.
- Step 2: Make your signature: draw it with your finger, type your name in a handwriting style, or upload a picture of it.
- Step 3: Tap Add signature to page, drag it into place and resize it, then tap Save signed PDF.
Your files never leave your device
This tool runs entirely in your browser. Nothing is uploaded to a server, so your documents and photos stay private. It is free, has no watermark and needs no sign-up.
Frequently asked questions
Is this a legally valid signature?
It adds a picture of your signature to the PDF. Whether a picture of a signature is accepted depends on the person or office asking for it and on the rules where you live. Some uses need a certified digital signature, which this tool does not create, so check what they accept.
Can I sign with my finger on a phone?
Yes. Open the Draw tab and write in the box. The line is smoothed so it looks natural. You can undo the last stroke or clear it and start again.
Can I add initials, a date or sign several pages?
Yes. Place as many items as you like on any page. Initials and a date are optional extras you can add in the same way and move or resize like your signature.
How do I move and resize my signature?
Drag it to move it. Drag the round handle on the corner, or pinch with two fingers, to change its size. On a computer you can also use the arrow keys, plus and minus.
Can the signature be taken off later?
The signature becomes part of the page, not a form field. Still, any PDF editor can cover or edit a page, so treat it as a visual mark and not as protection.
Is my PDF or signature uploaded?
No. Your PDF, your signature and the finished file stay in your browser on your device.
Read the guide: How to Sign a PDF on Your Phone →