TRB Photo Resizer: Official TET Photo & Signature Specs
Published on June 16, 2026

Applying for the Tamil Nadu Teacher Recruitment Board (TRB) or Teacher Eligibility Test (TET) requires uploading properly formatted photographs and signatures. Our free online TRB Photo Resizer is calibrated to match the official TRB specifications. This guide covers the correct dimensions and file size limits, helping you resize your files without error.
1. Introduction to the TRB and TNTET Exams
The Teacher Recruitment Board (TRB) of Tamil Nadu is the state agency responsible for recruiting qualified educators for government schools, polytechnic colleges, and universities. This includes roles like Postgraduate Assistants, Graduate Assistants, Block Educational Officers, and Assistant Professors. Additionally, TRB conducts the Tamil Nadu Teacher Eligibility Test (TNTET), which is a mandatory qualification for teachers seeking to instruct primary and middle school grades.
Applying for TRB examinations is a highly competitive and structured process. To handle the volume of applicants, the board uses an online application portal equipped with strict validation scripts. Uploading non-compliant files will cause automatic errors, blocking you from completing your registration. Using a dedicated utility like the TRB Photo Resizer ensures your files conform to the exact parameters defined in the official recruitment notifications.
2. Official TRB and TET Photo Specifications
TRB online applications utilize automated scripts to validate document size. If your file exceeds the official size or pixel threshold, the portal will reject the upload. Use the specs below to verify your documents:
| Parameter | Passport Photograph Details | Candidate Signature Details |
| Official Dimensions | 3.5 cm x 4.5 cm | 3.5 cm x 1.5 cm |
| Pixel Resolution (300 DPI) | 413 x 531 pixels | 413 x 177 pixels |
| File Size Range (KB) | 20 KB to 60 KB | 10 KB to 20 KB |
| File Format | JPEG / JPG only | JPEG / JPG only |
| Background Requirement | Solid White or Light Neutral | White Paper with Black Ink |
3. Professional Standards for Teacher Candidate Photographs
Since you are applying for a professional teaching career, your photograph should reflect a formal, academic appearance. Dress in formal or semi-formal attire. Avoid wearing casual T-shirts, heavy jewelry, or patterned clothes that can distract from your facial profile. The photo must be captured in clean lighting, with both ears and shoulders level and visible.
The background should be a solid, light color. Avoid outdoor settings, colorful walls, or curtains. If your photo has a busy backdrop, use a background remover tool before resizing it. The resizer tool locks the crop guides to the required 7:9 aspect ratio, helping you crop the frame accurately.
4. How to Use the TRB Photo Resizer Online
To crop your photo to the exact 7:9 ratio and compress the file size, use our dedicated resizer tool:
- Open our official TRB Photo Resizer tool.
- Upload your portrait photograph. The crop guidelines will lock onto the required 3.5cm x 4.5cm proportions.
- Adjust your head and shoulders centrally within the crop window. Both ears should be visible.
- Click the 'Download Ready File' button. Our script will compress the image to stay between 20KB and 60KB.
- To prepare your signature, navigate to our Signature Resizer page. Sign in black ink on plain paper, crop it to the 3.5cm x 1.5cm boundaries, and download the 10KB-20KB file.
5. TRB Candidate Signature Requirements
The signature is audited for clarity during the written examination. When signing, use a black ink pen on clean white paper. Do not use gel pens or markers, as they can bleed through the paper and smudge the scan. Scan the signature in a well-lit area without shadows. Upload the file to the signature resizer to crop it to the locked 3.5 cm x 1.5 cm aspect ratio. The compressor will adjust the image to be between 10 KB and 20 KB. This ensures the output is highly legible and prints cleanly on your hall ticket and registration sheets.
6. Guidelines to Prevent Document Rejections
The Teacher Recruitment Board is strict about document quality. Ensure your uploads meet these parameters:
- Solid Backdrop: The photo must have a clean, light-colored or white background. Do not upload selfies or images with cluttered domestic backgrounds.
- High Detail: Ensure the image is in focus and eyes are clearly visible. Avoid dark or blurred images, and remove sunglasses or caps before taking the photo.
- Correct File Extension: Ensure the output is saved strictly in '.jpg' or '.jpeg' formats. Other formats like '.png' or '.pdf' are not allowed by the TRB portal.
7. Troubleshooting Registration Upload Errors
Here are common errors encountered during the TRB portal registration and how to fix them:
- "File size exceeded": The TRB portal enforces a strict 60 KB limit on photos. If your image is 61 KB, the upload fails. Use our resizer to apply automatic compression and keep your image safely under the limit.
- "Dimensions not supported": If you upload a square or panoromic image, the portal rejects it. Our tool crops the photo to the exact 3.5cm x 4.5cm dimensions.
- "Invalid file name": Some legacy systems throw errors if the file name contains spaces or special characters. Save your files as photo.jpg or signature.jpg before uploading.
8. Frequently Asked Questions (FAQs)
Q1: What is the photo size limit for TRB applications?
A: The Teacher Recruitment Board (TRB) requires photos to be 3.5 cm x 4.5 cm, with file sizes not exceeding 60 KB. Signatures must be between 10 KB and 20 KB.
Q2: Can I use an old photograph for TRB OTR?
A: The photograph should be a recent one, preferably taken within the last six months, to reflect your current appearance.
Q3: Can I wear spectacles in my TRB photo?
A: Spectacles are allowed only if they show eyes clearly without flash reflections or dark frames. Tinted glasses or sunglasses are strictly prohibited.
Q4: What background color is preferred for TRB photos?
A: A solid white or very light grey background is preferred. Avoid dark backdrops or outdoor scenery.
Q5: Can I change my photo after submitting the TRB application?
A: Once the application is submitted and payment is completed, the registration data cannot be altered. Double-check all details in the preview before saving.
Q6: Is blue ink allowed for TRB candidate signatures?
A: The TRB guidelines recommend signing in black ink on white paper for maximum contrast on OMR sheets.
9. Why Choose Our TRB Photo Resizer
Our online TRB Photo Resizer operates entirely on your local device. Your personal files are never sent to a backend server, ensuring absolute privacy and security. The tool is free, fast, and works seamlessly on mobile devices and desktop computers, making your teacher recruitment application process simple and hassle-free.