Left Thumb Impression (LTI) Optimizer
Turn a terrible, dark phone photo of your thumbprint into a perfectly white, highly visible scan.
Upload Thumb Scan
Takes faded phone photos and makes them perfect.
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Why use our Left Thumb Impression (LTI) Optimizer?
The Left Thumb Impression (LTI) is a mandatory upload for almost every major Indian examination (UPSC, SSC, IBPS, RRB). Unfortunately, taking a photo of your thumbprint with a phone usually results in gray paper and faded ink. Our image processing tool wipes the paper background to pure white and enhances the fingerprint ridges to solid Blue or Black ink.
How to use this tool:
Stamp your left thumb on a piece of white paper and take a photo.
Upload the raw photo. You will see it looks dull and gray.
Use our 'Ink Thickness' slider to darken the ridges and blast the background white.
Select your required ink color (Blue/Black) and download the optimized 20KB-50KB file.
Frequently Asked Questions
Does it matter if I use blue or black ink?
Check your specific exam notification. SSC usually accepts both, but some exams strictly mandate Blue ink.
Will the biometric ridges remain clear?
Yes, our thresholding algorithm protects the unique biometric patterns while removing the shadow.