CoreTools

100% in your browser — files never uploaded

CTET September 2026 official requirements

Official signature requirements: JPG/JPEG, 3–30 KB, approximately 3.5 × 1.5 cm.

CoreTools working output

413×177 pixels is the rounded CoreTools conversion/default from approximately 3.5 × 1.5 cm at 300 DPI; it is not a separately published official pixel requirement.

Prepare the signature in your browser

Upload, crop and preview locally, then adjust the editable fields if the application portal shows different current instructions.

CTET September 2026 signature requirements

Official signature requirements: JPG/JPEG, 3–30 KB, approximately 3.5 × 1.5 cm.

Official requirement versus editable output

413×177 pixels is the rounded CoreTools conversion/default from approximately 3.5 × 1.5 cm at 300 DPI; it is not a separately published official pixel requirement.

Check before submitting

Review the application portal preview before submission and use the editable fields if your current notice shows a different instruction.

Tool family

Base tool: Signature Resizer for Exams

Frequently asked questions

Official signature requirements: JPG/JPEG, 3–30 KB, approximately 3.5 × 1.5 cm.

413×177 pixels is the rounded CoreTools conversion/default from approximately 3.5 × 1.5 cm at 300 DPI; it is not a separately published official pixel requirement.

Source: Central Board of Secondary Education, CTET September 2026; PDF page 3, Method of submission of online application form. Source checked 2026-08-27.

No. Cropping, resizing and compression all happen entirely in your browser — the file never leaves your device.

This page is locked to CTET. Use the full Signature Resizer to pick any other exam preset.