Thumb impression maker
Make a clean, correctly sized thumb impression from a photo.
Exam formsRuns on your device. Nothing is uploaded.
How it works
Make the print
Press your thumb on white paper with black or blue ink.
Add a photo of it
Take the photo straight on, in good light.
Crop
Move the box so the print fills most of it.
Tune the cleanup
Adjust the threshold until the ridges are clear.
Prepare and download
Check the ticks, then save thumb.jpg.
Questions
Notices usually ask for the left thumb, and say what to do if that's not possible. Follow what yours says.
Too little ink, or uneven light. Try again with a darker stamp pad and brighter light, or lower the threshold.
Yes, if it's sharp and taken straight on. Blurry ridges can get an application rejected.
No. Processing happens in your browser, so your photo and signature stay on your device.