CTET Photo & Signature Size — Resize to 10–100 KB and 3–30 KB

What size do I need?

Your photo must be a JPG/JPEG between 10 KB and 100 KB, measuring 3.5 cm × 4.5 cm. Use your latest photograph — the uploaded photo is matched with you at the exam centre. Your signature must be a JPG/JPEG between 3 KB and 30 KB, measuring 3.5 cm × 1.5 cm.

The bulletin section states no background colour, ink colour or pixel dimensions — it gives dimensions in centimetres only. This guide gives none of those extras: claims you may see elsewhere (a light background, blue or black ink, running handwriting, no capital letters) were not confirmed in the official text. In the Resizer, enter only the KB range and leave width and height empty. A file can fail at both ends of the range: too big and too small.

How to resize for CTET

1. Open the Exam Photo & Signature Resizer (the button above takes you straight there).
2. Choose Photo or Signature at the top of the tool.
3. Under “Choose your exam”, select Custom — there is no CTET preset, because the bulletin states KB ranges and centimetre dimensions only.
4. Enter the Minimum KB and Maximum KB from this guide (photo 10 and 100; signature 3 and 30). Leave width and height empty — the bulletin states no pixel dimensions.
5. Add your photo or signature — tap to choose the file, or drop it in.
6. Position it inside the frame and use the zoom slider if you need to — the frame crops, nothing is stretched.
7. Tap Create my file, check the size shown is inside the required range, then tap Download.

Open the Exam Photo & Signature Resizer

Why was my file rejected?

The portal says my photo size should be between 10 KB and 100 KB — what do I do?

Open the Exam Photo & Signature Resizer, choose Photo, select Custom, enter 10 as the minimum and 100 as the maximum, add your photo and tap Create my file. The Resizer makes a JPG inside the 10–100 KB range — check the size it shows before you download.

My signature was rejected — is the CTET signature size 3–30 KB?

Yes. For CTET the signature must be a JPG/JPEG between 3 KB and 30 KB, measuring 3.5 cm × 1.5 cm. In the Resizer, choose Signature, select Custom, enter 3 and 30, and create the file again.

What background and ink colour does CTET want?

The bulletin section examined states no background colour and no ink colour. This guide gives none: background and ink claims you see on other websites were not confirmed in the official text. Use a clear, recent photograph and a clear signature, and check your current notification.

What pixel size should my CTET photo be?

The bulletin gives dimensions in centimetres only (photo 3.5 cm × 4.5 cm, signature 3.5 cm × 1.5 cm) and states no pixel dimensions. Enter only the KB range in the Resizer and leave width and height empty.

Is my photo uploaded to a server?

No. FormReady processes your photo and signature in your browser, on your own device. Your files are never uploaded to FormReady.

Will this guarantee my form is accepted?

No tool can guarantee acceptance. FormReady matches the published size specification; final acceptance is decided by the exam portal. Always check the requirements in your current official notification before submitting.

What else does the CTET form need?

Preparing more than the photo and signature? The Document Pack prepares every document your form needs and downloads them together in one ZIP. Before you upload anything, run each file through the Document Validator — it checks size, format and dimensions against the verified specs and only checks; it never changes your file.

If a file is just over or just under size, the Image Compressor adjusts it to an exact KB. No thumb impression is mentioned in the CTET upload section.

Prepare everything — Document Pack Check before upload — Document Validator Fix the exact KB — Image Compressor

Other exam guides

Looking for a different exam? See all exam guides, each checked against its official notification.

Source and last checked

Source: Information Bulletin, CTET – February 2026 (CBSE), section “Method of Submission of Online Application Form”, item 2(c) “Online Uploading of Scanned Images” — official notification, via ctet.nic.in. FormReady's specifications follow the official notification for each exam.

Last checked: 27 October 2026 — always check your current official notification. This guide covers the February 2026 cycle; if you are applying for a later CTET session, check that session's bulletin.