Photo and signature resize for exam forms.

Every online exam form sets its own rules for the photo and signature you upload. You’ll find them in the exam’s notice, usually in a section called “guidelines for scanning and uploading documents”. Each file has a size in pixels and a range in KB, and a file outside the range is refused. Find those numbers first, then make each file to fit them. For IBPS bank exams, the photo is 200 × 230 pixels and 20 to 50 KB, and the signature is 140 × 60 pixels and 10 to 20 KB.

The signature resizer makes a JPG at the exact pixels you type, between the minimum and maximum KB you type. It works for the photo, thumb impression and declaration too, not just the signature. It runs in your browser, and nothing is uploaded.

Find the upload rules in your notice

Open the notice PDF from the exam body’s own website and search it for “scanning”, “pixels” or “kb”. Write down, for each file:

• the size in pixels (width × height);
• the minimum and maximum KB;
• the file type (usually JPG or JPEG);
• any rule about ink, paper or background.

Numbers change between exams and years, so use the notice for the exam you’re applying to.

An example: what IBPS asks for

These are the sizes in Annexure III of the IBPS notice for CRP PO/MT-XVI, dated 30 June 2026. IBPS marks the pixel sizes as “preferred”. All four files are JPG or JPEG.

File	Pixels	File size
Photograph	200 × 230	20 to 50 KB
Signature	140 × 60	10 to 20 KB
Left thumb impression	240 × 240	20 to 50 KB
Handwritten declaration	800 × 400	50 to 100 KB

For the thumb impression and declaration, the notice adds “in 200 DPI” and gives the matching size in cm: 3 × 3 cm and 10 × 5 cm. The photo must be recent and in colour, on a light background, preferably white. The signature is in black ink on white paper, and the thumb impression in black or blue ink.

The same notice asks for your 10th standard certificate as a PDF of up to 500 KB. It also asks you to take a live photograph during registration, with a webcam or by scanning a QR code with your phone. You can’t prepare that one in advance. Just sit against a light background in good light, look straight at the camera, and don’t wear a cap or dark glasses.

IBPS also says the form won’t let you move to the next stage until the photo and signature meet these specifications.

How to resize your signature to 10 to 20 KB

1. Sign on plain white paper with a black ink pen, the way you’ll sign at the exam. Don’t sign in capital letters.
2. Photograph it from straight above, in bright, even light, without your shadow on the page.
3. Open the signature resizer. Its defaults are already 140 × 60 pixels and 10 to 20 KB. If your notice gives other numbers, type those instead.
4. Leave “Clean up” ticked. It turns the paper pure white, trims the empty space around your signature and fits it into the exact size.
5. Choose the photo, then download the JPG. Check that the result shows the pixels and KB you need.

A clean signature can compress to just a few KB, below the minimum. When that happens, the tool adds empty space inside the file to reach the minimum, without changing the picture, and says “padded to the minimum size”.

IBPS warns that if the signature on your attendance sheet or call letter at the exam doesn’t match the one you uploaded, you’ll be disqualified. Upload your everyday signature, not a neater one you won’t repeat.

How to resize your photo to 200 × 230 pixels

1. Take the photo facing the camera, against a plain light wall, in even light. Have someone else take it at eye level. IBPS asks for no caps, hats or dark glasses. If you wear glasses, make sure there’s no glare on them.
2. Crop it in your phone’s photo editor so that your head and shoulders fill the frame, a little taller than it is wide.
3. Open the signature resizer and set it to 200 × 230 pixels, 20 to 50 KB.
4. Untick “Clean up”. That keeps the photo as it is and only resizes it.
5. Choose the photo and download the JPG.

The tool fits the whole picture inside 200 × 230 without stretching your face. If your crop is a different shape, it fills the leftover space with white strips at the edges, which blend into a white background. The closer your crop is to the final shape, the less white there is.

The IBPS notice also asks you to keep about 8 printed copies of the same photo, to paste on your call letter and bring to each stage. It gives the print size as 4.5 cm × 3.5 cm. The passport photo maker has an India 3.5 × 4.5 cm size and a 6 × 4 inch print sheet. Make the print and the upload from the same photo.

Thumb impression and handwritten declaration

Both are ink on white paper, so they work like the signature, with “Clean up” left on.

• Thumb impression: press your inked left thumb on white paper, photograph it, and set the resizer to 240 × 240 pixels, 20 to 50 KB.
• Declaration: copy the declaration text from your notice word for word in your own handwriting, in English and not in capitals. Write it in a block about twice as wide as it is tall, so it fits 800 × 400 without much empty space. Then set the resizer to 800 × 400 pixels, 50 to 100 KB.

Why the form rejects your file

• Too big in KB. Lower the maximum you type in the resizer by a few KB, then try again. For why KB and pixels are different things, see how to reduce photo size in KB.
• Too small in KB. Set the minimum in the resizer, and it pads the file up to it.
• Wrong type. If your phone saved a HEIC photo, convert it with HEIC to JPG first.
• Blurred or smudged. IBPS says an unclear photo, signature, thumb impression or declaration gets the application rejected. Retake it in better light rather than sharpening it.
• Wrong box. Each file goes in its own upload slot. A signature uploaded as the photo is still a wrong upload, even if its size fits.

Questions

What is a 10 KB to 20 KB signature size in pixels?

KB and pixels are separate rules, and the notice sets both. For IBPS, the signature is 140 × 60 pixels and 10 to 20 KB. Other exams set their own sizes, so check yours.

How do I convert a size in cm to pixels?

Divide the centimetres by 2.54, then multiply by the DPI the notice gives. At 200 DPI, 3 cm is about 236 pixels, which IBPS rounds to 240. If the notice already gives pixels, use those.

Can I use the same photo for SSC, UPSC or NEET?

Each exam body publishes its own sizes, and some have rules IBPS doesn’t, such as how recent the photo must be. Read that exam’s notice and type its numbers into the resizer.

Do I need a scanner?

The IBPS notice describes scanning at 200 dpi or more. Its upload step shows an error when a file’s size or format isn’t as prescribed, and it rejects blurred or smudged images. A sharp phone photo in good light, resized to the right pixels and KB, meets both.

Is my signature uploaded to your site?

No. The signature resizer works inside your browser tab, on your device, and the tool page shows how to check that yourself. You upload the file only to the exam form.