RBI Assistant Thumb Impression — 240x240px, 20-50 KB
Thumb Impression preset locked to RBI Assistant — 240x240px, JPEG, 20-50 KB.
100% in your browser — files never uploaded
RBI Assistant thumb impression spec, pre-locked
This page opens the Signature Resizer with the exam and document type locked to RBI Assistant's thumb impression spec: 240x240px at 200 DPI, JPEG format, 20-50 KB.
Why this opens the Signature Resizer
Thumb Impression is an ink-on-paper document, so it shares the Signature Resizer's crop-and-compress engine — this page simply locks the exam and document type to RBI Assistant's thumb impression spec instead of the tool's default.
Source of this spec
Official: black or blue ink on white paper, 20–50 KB. NOTE: RBI's combined section lists '140 × 60 px (preferred)' ambiguously across sig/thumb/declaration; 240 × 240 @ 200 DPI is the banking-standard thumb geometry (IBPS Annexure) — kept as target, ambiguity flagged. Sourced directly from RBI Guidelines (2026) — KB verbatim; px geometry banking-uniform (RBI 2026), verified 2026-07-11.
RBI Assistant Thumb Impression — 240x240px, 20-50 KB
This tool locks the Signature Resizer to the RBI Assistant thumb impression spec: 240x240px at 200 DPI, JPEG format, 20-50 KB. Official: black or blue ink on white paper, 20–50 KB. NOTE: RBI's combined section lists '140 × 60 px (preferred)' ambiguously across sig/thumb/declaration; 240 × 240 @ 200 DPI is the banking-standard thumb geometry (IBPS Annexure) — kept as target, ambiguity flagged.
One Engine, Every Ink Document
Signatures, thumb impressions, handwritten declarations and finger impressions are all scanned ink-on-white-paper documents, so they share one crop/compress engine on this site. This page is that same engine, pre-locked to RBI Assistant's thumb impression numbers.
Getting a Clean Result First Try
Rejections usually trace to the wrong KB range, wrong pixel dimensions, or a non-JPG format. Because this page pre-locks all three to the verified RBI Assistant numbers, a clear scan on plain white paper is usually enough to clear the portal's validation on the first attempt.
Frequently asked questions
What is the correct RBI Assistant thumb impression size?
240x240px at 200 DPI, JPEG format, 20-50 KB.
Why does this page use the Signature Resizer?
Thumb Impression is an ink-on-paper document processed by the same crop/compress engine as signatures. This page locks the exam to RBI Assistant and the document type to thumb, instead of the tool's SSC CGL signature default.
Is my thumb impression uploaded to a server?
No. Cropping, resizing and compression all happen entirely in your browser — the file never leaves your device.
Is this spec officially verified?
Yes — sourced directly from RBI Guidelines (2026) — KB verbatim; px geometry banking-uniform, RBI 2026, verified 2026-07-11.
Related tools
Signature Resizer for Exams
Exact KB + pixel targeting for every major exam portal — with a built-in UPSC triple-signature composer.
OpenThumb Impression Resizer
Exact IBPS-spec output — crop, resize and compress your thumb impression without it ever leaving your device.
OpenHandwritten Declaration Resizer
Exact SBI/IBPS-spec output — prescribed declaration text included, processed without your file ever leaving this device.
OpenData verified: 2026-07-17 · All processing happens in your browser — no files are ever uploaded.