Signature resizer — clean and size for any portal
Upload a photo of your signature and turn it into a clean, correctly sized file that any application portal will accept. PublicFix tidies the background, trims the edges and compresses to the exact KB and dimensions required. No scanner or design skills needed, and your signature never leaves your device.
What you can do
Clean background
Remove paper shadows so the signature sits on a clean white background.
Exact KB & size
Match the precise dimensions and file size the portal demands.
Crop to the ink
Trim away empty space so only the signature remains.
Phone photo friendly
Works from a simple phone photo — no scanner required.
How it works
- 1
Photograph your signature
Sign on white paper and take a clear photo, or upload a scan.
- 2
Clean & size it
The tool cleans the background and sets the required dimensions.
- 3
Download
Save a crisp signature at the exact KB the portal needs.
Frequently asked questions
What size should a signature be for online forms?
Many portals want a signature around 10–20 KB at a set pixel size. Enter the exact requirement and the tool matches it.
Can I remove the background from my signature?
Yes. The tool cleans up paper shadows and gives you a signature on a clean white background.
Do I need a scanner?
No. A clear phone photo of your signature on white paper works fine.
Is my signature kept private?
Yes. It is processed on your device and is never uploaded to a server.