Back to Blog
CBSE / CTET August 8, 2026 5 min read

CTET Photo & Signature Size Specifications — 2026 Upload Guide

Applying for the Central Teacher Eligibility Test (CTET) conducted by CBSE? If your photograph or signature does not match the exact pixel ratios and KB sizes, the portal will reject your submission. Here is how to prepare compliant uploads.

CBSE has strict guidelines for uploading documents on the CTET portal. Incorrect files will prevent you from completing your registration fee payment, or worse, can lead to the cancellation of your admit card.

CTET Photo & Signature Sizing Reference

Here are the exact guidelines set in the official CTET Information Bulletin:

Passport Photo Size

3.5 cm × 4.5 cm

Photo Pixel Layout

350 × 450 pixels

Photo KB Range

10 KB to 100 KB

Signature Dimension

3.5 cm × 1.5 cm

Signature Pixel Layout

350 × 150 pixels

Signature KB Range

3 KB to 30 KB

Important Candidate Guidelines

  • Photo Capture date: Photos should preferably be recent (taken within three months) with a white or light background.
  • Spectacles: Spectacles are allowed only if regularly worn, but ensure there is no flash reflection in the eyes.
  • Signature ink: Sign on plain white paper using a running hand with a **black or blue ink pen**. Do not write in block capitals.

Local Canvas Resizing for Safety

Uploading your signature and photo scans to public servers is unsafe. OptiKit processes your files directly in your browser memory, guaranteeing that your personal photos never leave your device.

How to Compress CTET Images in Seconds

  1. Visit the CTET Photo & Signature Resizer.
  2. Select the **Photo** tab to resize your photo, crop, and compress it under 100KB.
  3. Switch to the **Signature** tab to crop your signature scan under 30KB.
  4. Download the resulting JPEGs and upload them directly to the CTET portal.

Format CTET uploads offline.

Satisfy the strict CBSE validation requirements for photos and signatures in seconds with total data security.

Resize CTET Images Now