Central Teacher Eligibility Test Photo Resize — 300×400px, 10-100KB
Free photo resizer pre-locked to the exact specs Central Board of Secondary Education requires for CTET applications. Browser-only, no upload, no signup.
Drop your photo here for CTET
JPG, PNG, or HEIC. Photo never leaves your browser.
CTET photo specifications
| Width | 300 pixels |
|---|---|
| Height | 400 pixels |
| Min file size | 10 KB |
| Max file size | 100 KB |
| Format | JPG |
| Background | white |
| Authority | Central Board of Secondary Education |
| Apply at | https://ctet.nic.in |
How to resize (5 steps)
- Upload your photo. Drag your photo onto the drop zone above, or click to choose a file. JPG, PNG, and HEIC are all accepted.
- Tool auto-locks dimensions. The tool automatically resizes to 300×400px (the CTET required size). You don't need to set anything.
- Tool auto-targets file size. Binary search runs across JPG quality levels until output lands within 5% of the 10-100KB range. Usually 3-5 passes.
- Download the result. Click Download. You get a JPG file at the exact CTET spec.
- Upload to the application portal. Submit the resized photo to https://ctet.nic.in alongside your application.
Common rejection reasons for CTET photos
- Photo dimensions don't match the required 300×400 pixels
- File size is over 100KB or under 10KB
- File format is not JPG (e.g. PNG when JPG is required)
- Background is not white (e.g. patterned wallpaper or gradient)
- Photo is blurry, dark, or has a visible filter
- Face takes up too little or too much of the frame
- Wearing sunglasses, hat, or other accessories that obscure facial features
Frequently asked questions
+−What is the photo size for CTET?
The Central Teacher Eligibility Test application requires a photo of exactly 300×400 pixels, between 10KB and 100KB, in JPG format, on a white background.
+−How do I compress my CTET photo to under 100KB?
Drop your photo into the tool above. It pre-locks the dimensions to 300×400px and runs binary search across quality levels to land within 5% of your target size. The output downloads as JPG.
+−Will my photo be uploaded to your server?
No. Compression runs entirely in your browser using the Canvas API. Your photos never leave your device — useful for sensitive ID documents.
+−What if my original photo is too small or too low resolution?
If your source is under 300px wide, the tool will upscale (which can look slightly blurry). For best results, start with a photo at least 600×800 pixels and let the tool downscale.
+−Can I use this for the CTET signature scan too?
This page is calibrated for the photo. For signature scanning, use the main image compressor at https://wrrk.space/image-compressor with target-KB mode set to your signature's required size (typically 4-30KB).
+−Is the photo format requirement strict?
Yes — Central Board of Secondary Education rejects applications where the photo doesn't match the exact specs. The tool ensures your output is JPG, 300×400px, and 10-100KB before download.
+−Where do I upload the photo after compressing?
Upload it on the CTET application portal at https://ctet.nic.in. We are not affiliated with Central Board of Secondary Education; this tool just helps you meet the technical photo spec.