To remove the background from a signature, all you need is a photo or scan of it on paper. The paper disappears, the ink stays, and you get a transparent signature for contracts, forms and PDFs.
How to photograph your signature for best results
- Sign with a dark pen (black or blue) on plain white paper.
- Use daylight or a bright room, and avoid your phone casting a shadow.
- Hold the phone parallel to the paper so the signature is not skewed.
- Fill most of the frame with the signature for sharper strokes.
The tool evens out uneven lighting across the page, so a slightly shadowed photo still gives a clean result.
Add your signature to a PDF or Word document
Word / Google Docs: Insert → Image, choose the PNG, then set wrapping to “In front of text” so you can move it onto the signature line.
PDF: open the PDF in an editor that supports images (for example Preview on Mac, or your PDF app's “Add image” tool), insert the PNG and resize it.
Why privacy matters for signatures
A signature is personal data. Many online tools send it to a server for processing. Here, the image is processed by your own browser and is never sent anywhere, so there is no copy of your signature on someone else's computer.