Application Form

IBPS Clerk Left Thumb Impression Size 2026: 240×240 Pixels, 20–50 KB

01 Aug 2026 Last Updated

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Quick Overview

Exam IBPS Clerk 2026

Status Notification Released

Mode Online

Selection Prelims + Mains + Local Language Proficiency Test (LPT)

Source ibps.in

Action Check the correct thumb impression size and upload rules below

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Download IBPS Clerk Left Thumb Impression Size PDF

Download this PDF to check the correct IBPS Clerk left thumb impression size, 240×240 pixel dimensions, 20–50 KB file size, JPG/JPEG format, ink colour, upload process, and common rejection mistakes.

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IBPS Clerk Left Thumb Impression Size is one of the most important document-upload requirements in the CRP CSA-XVI application form. Candidates must upload their own clear left thumb impression in the correct dimensions, file format and KB range.

The official IBPS instructions specify a preferred dimension of 240 × 240 pixels at 200 DPI. The file should be between 20 KB and 50 KB and saved in JPG or JPEG format.

Rejection warning: An unclear, blurred, cropped or smudged left thumb impression may lead to rejection of the IBPS Clerk application form. Always check the upload preview before completing registration.

IBPS Clerk Left Thumb Impression Size Overview

Document	Left Thumb Impression
Preferred Dimensions	240 × 240 pixels
Physical Size	3 cm × 3 cm
Preferred Resolution	200 DPI
File Size	20 KB to 50 KB
File Format	JPG or JPEG
Paper Colour	White
Ink Colour	Black or Blue
Whose Impression?	The candidate’s own left thumb impression

IBPS Clerk Left Thumb Impression Size and Format

The correct IBPS Clerk Left Thumb Impression Size is preferably 240 pixels in width and 240 pixels in height. This square image should be prepared at approximately 200 DPI for the required clarity.

The final image must be between 20 KB and 50 KB. Files below or above this range may show an upload error on the application portal.

IBPS Clerk Left Thumb Impression Size in Pixels

The preferred pixel dimensions are:

Width: 240 pixels
Height: 240 pixels
Aspect ratio: 1:1 square
Preferred quality: 200 DPI

Do not stretch a narrow image to make it 240 × 240 pixels. Stretching may distort the fingerprint lines and make the impression unclear.

IBPS Clerk Left Thumb Impression Size in KB

The accepted file-size range is:

Minimum file size: 20 KB
Maximum file size: 50 KB

After resizing, open the file and zoom in. The fingerprint pattern should remain clearly visible. A file that meets the KB limit but appears blurred should not be uploaded.

IBPS Clerk Thumb Impression File Format

The left thumb impression must be saved in:

JPG format, or
JPEG format

PDF, PNG, WEBP, HEIC and other file formats should not be used for this upload unless the active IBPS portal specifically provides a different instruction.

How to Make the IBPS Clerk Left Thumb Impression

How to make IBPS Clerk left thumb impression — Use black or blue ink on clean white paper and press the left thumb gently without rolling it.

Follow these steps to prepare a clean and valid impression:

Take a clean and plain white sheet of paper.
Clean and dry your left thumb properly.
Apply black or blue ink evenly to the thumb.
Avoid applying excessive ink.
Place the thumb gently on the white paper.
Do not slide or rotate the thumb while pressing.
Lift the thumb straight upward.
Check whether the complete impression is visible.
Allow the ink to dry before scanning.
Repeat the process if the impression is smudged or incomplete.

Best result: The centre and outer fingerprint lines should be visible. The image should not contain dark ink patches, broken lines or unnecessary marks around the impression.

Should the Thumb Be Rolled?

No. Do not roll the thumb from one side to another. Rolling may create a stretched or double impression. Press it gently and lift it vertically.

Black Ink or Blue Ink for IBPS Clerk Thumb Impression?

Both black and blue ink are permitted. Use only one colour and ensure that the fingerprint remains clearly visible against the white background.

Avoid red, green or any decorative ink. Do not use pencil, sketch pen, marker or digital drawing tools to create the impression.

How to Scan and Resize IBPS Clerk Left Thumb Impression

The official instructions recommend scanning documents at a minimum resolution of approximately 200 DPI and saving the image in True Colour.

Scan the Impression Correctly

Place the dried white paper properly inside the scanner.
Set scanner resolution to at least 200 DPI.
Select colour or True Colour mode.
Scan the complete thumb impression.
Crop the image close to the impression.
Do not cut the outer fingerprint lines.
Resize the image to 240 × 240 pixels.
Save it as JPG or JPEG.
Check that the file size is between 20 KB and 50 KB.

Resize the Impression Using Microsoft Paint

Open the scanned image in Microsoft Paint.
Select the Crop option.
Remove unnecessary white space around the impression.
Click the Resize option.
Select Pixels.
Set the image to 240 × 240 pixels.
Use Save As and select JPEG picture.
Right-click the saved file and check its size in Properties.

Important: Keep the original image safely before resizing. Repeated compression can reduce the clarity of the fingerprint.

Can a Mobile Phone Be Used?

A scanner generally provides better clarity. When a scanner is unavailable, candidates may take a clear, straight photograph in bright natural light and then crop and resize it.

Make sure that there is no shadow, tilted angle, glare or textured background. Do not send the image through WhatsApp before uploading because messaging applications may reduce image quality.

How to Upload IBPS Clerk Left Thumb Impression

Follow this process while filling the CRP CSA-XVI application form:

Open the official IBPS Clerk application form.
Complete the basic registration details.
Open the document-upload section.
Click the separate Upload Left Thumb Impression link.
Select the prepared JPG or JPEG file.
Click Open or Upload.
Wait for the upload preview to appear.
Check the clarity and position of the impression.
Re-upload the file if it is blurred, cropped or unclear.
Complete registration only after checking all uploaded documents.

The photograph, signature, thumb impression and handwritten declaration have separate upload boxes. Uploading a document in the wrong box can make the application invalid.

For other document requirements, read the complete IBPS Clerk Photo and Signature Size 2026 guide.

Candidates should also check the IBPS Clerk Handwritten Declaration 2026 before completing the form.

IBPS Clerk Left Thumb Impression Mistakes to Avoid

IBPS Clerk left thumb impression upload mistakes — Avoid blurred, smudged, cropped, stretched or incorrectly sized thumb impressions.

The following mistakes may result in an upload error or application rejection:

Mistake	Correct Method
Using the right thumb without a valid reason	Use the left thumb unless it is unavailable.
Using excessive ink	Apply a thin and even layer of black or blue ink.
Sliding or rolling the thumb	Press gently and lift the thumb straight upward.
Uploading a blurred impression	Take another impression and scan it clearly.
Uploading another person’s impression	Only the applicant’s own impression is valid.
Using coloured or dark paper	Use a clean white sheet.
Wrong file format	Save the image as JPG or JPEG.
Wrong file size	Keep the final file between 20 KB and 50 KB.
Excessive cropping	Keep the complete fingerprint visible.
Uploading it in the signature box	Use only the designated thumb-impression upload link.

Do not final-submit immediately: First open the uploaded preview. If the fingerprint is not clearly visible, prepare and upload a new image before completing registration.

What If the Candidate Does Not Have a Left Thumb?

IBPS provides alternative rules for candidates who cannot provide a left thumb impression.

If the left thumb is unavailable, use the right thumb.
If both thumbs are unavailable, use a finger of the left hand starting from the forefinger.
If no fingers are available on the left hand, use a finger of the right hand starting from the forefinger.
If no fingers are available, the left toe impression may be used.

When an alternative finger or toe is used, mention the following information clearly in the uploaded document:

Name of the finger or toe used
Whether it belongs to the left or right hand
Reason the left thumb impression has not been used

Example: “Right Thumb Impression – Left Thumb Not Available” or “Left Forefinger Impression – Both Thumbs Not Available.”

Left Thumb Upload vs IBPS Biometric Verification

Candidates often confuse the application-form impression with the biometric verification conducted during the examination process.

Point	Uploaded Thumb Impression	Biometric Verification
Stage	During online application	At examination or recruitment stages
Primary Thumb	Left thumb	Generally right thumb or another permitted finger
Method	JPG/JPEG image upload	Live biometric capture
File Size	20 KB to 50 KB	No file upload by the candidate
Purpose	Completion of application documents	Identity verification

On examination day, candidates should keep their fingers clean and dry. Mehndi, stamped ink, colour, dust or moisture may interfere with biometric fingerprint capture.

Final Checklist Before Uploading

✓ Candidate’s own left thumb impression
✓ Clean white paper
✓ Black or blue ink
✓ Complete fingerprint visible
✓ No smudging or double impression
✓ 240 × 240 pixels preferred
✓ Approximately 200 DPI
✓ File size between 20 KB and 50 KB
✓ JPG or JPEG format
✓ Uploaded in the correct document box
✓ Preview checked before final submission

Before submitting the complete form, candidates should also review the IBPS Clerk Apply Online 2026 instructions.

Final Words

The correct IBPS Clerk Left Thumb Impression Size is 240 × 240 pixels, preferably at 200 DPI, with a file size of 20 KB to 50 KB. The candidate should use black or blue ink on clean white paper and save the final image in JPG or JPEG format.

Do not upload a blurred, incomplete or smudged impression. Check the preview carefully because an incorrect document may result in application rejection.

Check Official IBPS Updates

Download Official IBPS Clerk Notification

Frequently Asked Questions

What is the IBPS Clerk Left Thumb Impression Size?

The preferred dimensions are 240 × 240 pixels at approximately 200 DPI. The file size should be between 20 KB and 50 KB.

Which file format is accepted for IBPS Clerk thumb impression?

The left thumb impression should be uploaded in JPG or JPEG format.

Which ink colour should be used?

Candidates can use either black or blue ink on a clean white sheet of paper.

Can I use my right thumb impression?

Normally, candidates should use the left thumb impression. The right thumb may be used when the candidate does not have a left thumb.

Is 240 × 240 pixels compulsory?

The official instructions mention 240 × 240 pixels at 200 DPI as the preferred dimensions. Candidates should use this size to avoid upload and clarity issues.

Can I upload the thumb impression in PNG format?

No. The image should be saved and uploaded in JPG or JPEG format.

Can I use a mobile phone to prepare the image?

Yes, a clear mobile image may be used when a scanner is unavailable. The photograph should be straight, properly cropped, shadow-free and converted into the required JPG or JPEG format.

What happens if the thumb impression is smudged?

A blurred or smudged thumb impression may cause application rejection. Candidates should prepare and upload a fresh, clear impression before final submission.

Can another person’s thumb impression be uploaded?

No. The uploaded left thumb impression must belong to the candidate applying for the examination.

What should I do if the file size is below 20 KB?

Rescan the image at better quality or save it with slightly higher JPEG quality. Do not add an artificial background or blur the image to increase its size.