Exam & form photosFully working
CTET photo and signature resizer
FreeNo uploadNo signupWorks offline
CTET states its photo and signature sizes in centimetres rather than pixels, which makes them easy to get wrong. Drop your scan or phone photo and get a JPG at the right proportions and inside the KB range the bulletin sets.
How to use CTET Photo & Signature Resize

- Choose what you are uploading.
- Choose or drop the scan or phone photo.
- Click Resize to fit.
- Check the ✓ list against the official rules and download.
Supported formats
- Input: JPG, PNG, WebP, HEIC
- Output: JPG
Official sizes
From CTET September 2026 Information Bulletin, STEP 3. Pixel sizes are only listed where the notice sets one.
| Upload | Pixel size | File size |
|---|---|---|
| Photo | at least 200 × 257 px | 10–100 KB |
| Signature | not set | 3–30 KB |
Rules from the notice
Besides the size, the notice asks for:
- JPG/JPEG, 10–100 KB
- 3.5 cm wide × 4.5 cm high
- A recent photo – it is matched against you at the exam centre
- JPG/JPEG, 3–30 KB
- 3.5 cm long × 1.5 cm high
Centimetres, not pixels
The bulletin asks for a photo 3.5 cm wide by 4.5 cm high and a signature 3.5 cm long by 1.5 cm high, and gives no pixel size at all. Any pixel dimensions with those proportions and a file inside the KB range will satisfy it; this page uses 3.5 × 4.5 cm at 300 DPI, which is 413 × 531 pixels. Treat any site that presents a pixel figure as the official CTET requirement with suspicion – the bulletin does not state one.
Your photo is checked against you
The bulletin says the uploaded photograph is matched with the candidate appearing at the examination centre, so it has to be recent and recognisable. An old photo that looks unlike you is a problem at the centre, not at upload time.
How to make a clean signature image
Sign in black ink on plain white paper, in good daylight, and photograph it from straight above so the page fills most of the picture. The tool turns the grey paper white, trims to the ink and centres it at the required size.
Photo with a white background
This page crops the photo from the centre. For a face-centred crop and a white background, use the Passport Photo Maker and choose this exam in the list – it finds your face and gives the same size and file-size check.
Limitations
- Follows the notice named on this page; a newer notification can change the rules – check yours before applying.
- Checks size, file size and format, not whether the photo itself (expression, lighting, how recent) meets the rules.
Privacy
Files you choose are read into your browser’s memory and processed on your device; they are not uploaded to a server. Temporary download links are released after use, and the offline cache never stores your documents. More about privacy and limits.
Frequently asked questions
What is the CTET photo size?
3.5 cm wide by 4.5 cm high, JPG or JPEG, between 10 and 100 KB. The bulletin gives no pixel size, so any dimensions in those proportions are acceptable.
What is the CTET signature size?
3.5 cm long by 1.5 cm high, JPG or JPEG, between 3 and 30 KB. That is a small file, so crop tightly to the ink.
How many pixels is 3.5 × 4.5 cm?
413 × 531 pixels at 300 DPI, or 207 × 266 at 150 DPI. Both are the same physical size; the higher one holds more detail and makes a larger file.
Does 1 KB mean 1000 or 1024 bytes?
Forms differ, so the tool aims for a file that passes either way: under the maximum counted in 1000-byte KB and over the minimum counted in 1024-byte KB.
Are my photo and signature uploaded?
No. They are resized in your browser and never leave your device – important for ID documents.
Is it free?
Yes – free with no signup, no watermark and no limit.
Related tools
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- Resize Image in cmSet an image to a print size in centimetres, at the DPI you choose.