The IBPS SO left thumb impression must be 240 × 240 pixels, between 20 and 50 KB, in JPG format. Press your left thumb on a blue or black ink pad, then on plain white paper. Photograph or scan it in good light, with no smudges.
⚡ IBPS SO Left Thumb Impression Resizer — 240×240px, 20–50 KB● 100% private · in your browser
How to make the IBPS SO left thumb impression
- Use a blue or black stamp-pad ink — not pen ink smeared on the thumb.
- Press your left thumb lightly on the pad so it is evenly coated, without excess ink.
- Place the thumb on plain white paper and roll it gently once from one side to the other, then lift straight up.
- Make 3–4 impressions and pick the one where the ridges are clearest.
- Photograph it from directly above in daylight, then crop to a square around the print in the tool below.
Common mistakes that get it rejected
- A black blob with no visible ridges (too much ink)
- A faint, patchy print (too little ink or pressure)
- Right thumb used when the left is available
- Shadows, fingers or the ink pad visible in the photo
- The print is tiny in a large white frame — crop close
📖 Full guide: thumb impression & handwritten declaration
All IBPS SO document sizes
FAQs
What is the IBPS SO left thumb impression size?
240×240 pixels, 20–50 KB, JPG format.
Which thumb should I use?
Use your LEFT thumb. If it is not available, the notification usually allows the right thumb — check your exam notification.
How do I reduce the left thumb impression to under 50 KB?
Upload it in the tool on this page — it resizes to 240×240px and compresses to 20–50 KB automatically, in your browser.
What are the IBPS SO photo and signature sizes?
Photo 200×230 px, 20–50 KB; signature 140×60 px, 10–20 KB. Photo resizer · Signature resizer.
Left Thumb Impression for other bank exams
Standard IBPS-pattern specification (last review: September 2026). Always verify against the latest official notification.