What Sign PDF does
Sign PDF lets you sign a document without printing, signing and scanning it. Create your signature by drawing it, typing your name or uploading a photo of it, add it to a page, then drag it exactly where it belongs and resize it with the corner handles. You can sign several pages, use different signatures on different pages and download the signed PDF when everything looks right.
How to sign a PDF
- Add the PDF you need to sign.
- Create your signature: draw it, type your name, or upload a photo or scan.
- Go to the page you want to sign and press Add signature to this page.
- Drag the signature into position. Pull any corner handle to make it larger or smaller.
- Repeat on other pages if needed. Tick the date option before adding if you want today's date under the signature.
- Press Download signed PDF.
Three ways to create a signature
| Method | How | Best for |
|---|---|---|
| Draw | Sign with your finger, stylus or mouse | Phones and tablets; the most natural result |
| Type | Type your name and choose a handwriting style | A quick, neat signature on a computer |
| Upload | Use a photo or scan of your pen signature | Matching your signature on paper exactly |
Uploading a photo of your signature
Sign on plain white paper, photograph it in good light and upload the picture. The tool removes the paper background automatically, so only the ink is placed on your document and the lines and text of the page stay visible through it. You see the original and the cleaned version side by side, and a sensitivity slider lets you keep faint strokes or remove more of the paper. If the background cannot be removed reliably — for example on dark, coloured or patterned paper — the tool tells you and uses the original picture instead. The image is processed on your device and is not uploaded.
Moving around the document
| Control | What it does |
|---|---|
| Previous / next and page thumbnails | Move between pages; a badge shows how many signatures each page has |
| Zoom in / out, Fit width, Fit page | Change the view for precise placement — the signature stays where you put it |
| Undo / redo | Step back and forward through your changes |
| Reset position | Puts the selected signature back in the middle at its default size |
| Delete / Replace | Removes the selected signature, or swaps it for the one currently in the signature panel |
Precise placement with the keyboard
Select a signature and use the arrow keys to move it one point at a time; hold Shift for steps of ten. Plus and minus resize it, Delete removes it and Escape deselects. Ctrl+Z and Ctrl+Y undo and redo.
On a phone or tablet
Drag the signature with your finger and pull a corner to resize it. Swiping anywhere else on the page scrolls as usual, so the signature does not move by accident.
Is it legally valid?
This tool places a visible image of your signature on the page — an electronic signature in the everyday sense. Many ordinary documents are accepted this way: internal approvals, consent forms, simple agreements, application forms.
It is not a certificate-based digital signature. It does not prove your identity cryptographically or seal the document against later changes. Some transactions and authorities require that kind of signature, issued through a licensed provider. Rules differ by country and by type of document, so check what the receiving party requires. This is general information, not legal advice.
Tips
- Draw slowly and a little larger than usual; the signature is scaled down neatly.
- Use dark blue or black ink for a natural look.
- Sign last. If you still need to fill in fields or merge documents, do that first.
- To make it harder to lift your signature or alter the document, flatten the signed file and consider adding a password with Protect PDF.
- For several signers, each person signs in turn and passes the file on.
Keep your signature safe
Treat an image of your signature like the signature itself. Do not share the image file, and sign only documents you have read.
Privacy
Your signature is created and placed in your browser. Neither the document nor the signature is uploaded to our server.