You found the CET exam you want to apply for. You filled in all your details. Then you reach the photo upload section - and the portal rejects your image.
File too large. Wrong format. Incorrect dimensions. These errors are extremely common among CET applicants, and they can delay or even invalidate your application if not fixed before the deadline.
CET exams - whether Maharashtra State CET, Delhi CET, or other state-level Common Eligibility Tests - all require your photo and signature to meet specific file size, format, and dimension rules. The good news is that meeting these requirements takes under a minute once you know what to do.
This guide covers the exact photo and signature size requirements for major CET exams, the most common upload errors, and a simple step-by-step method to resize your photo correctly - for free.
CET Exam Photo Size Requirements
Most CET exam portals in India follow similar photo upload guidelines. While specific requirements can vary slightly between Maharashtra CET, Delhi CET, and other state CETs, the typical standards are consistent across most exams.
Typical CET Photo Requirements
Requirement Typical Value File Size 20KB – 50KB Format JPG / JPEG only Dimensions 3.5cm × 4.5cm Background Plain white Resolution 200 DPI minimum Expression Neutral, facing forward
Maharashtra CET Specific Requirements
Maharashtra State CETs - including MHT CET for engineering and pharmacy admissions - typically require:
- Photo file size: 20KB to 50KB
- Format: JPEG/JPG
- Background: White or light background
- Recent passport-style photo with clear face visibility
Delhi CET Requirements
Delhi CET (conducted for polytechnic admissions) typically requires:
- Photo file size: 20KB to 50KB
- Format: JPEG/JPG
- Dimensions: 3.5cm × 4.5cm (passport size)
- Background: White
Important: Always check the official notification for your specific CET exam before uploading. Requirements can change slightly between exam years. When in doubt, keep your photo within 20KB–50KB in JPEG format with a white background - this works for nearly all state CET portals.
Signature Size Requirements for CET Exams
In addition to your photo, most CET application forms also require you to upload a separate image of your signature. The signature requirements are different from the photo requirements.
Requirement Typical Value File Size 10KB – 20KB Format JPG / JPEG Background White Dimensions 140×60 pixels (typical)
Your signature must be on plain white paper with a blue or black pen. The image should only contain your signature - not the full page. Extra white space around the signature increases the file size unnecessarily and should be trimmed before uploading.
Common Photo Upload Errors in CET Forms
Understanding why the portal rejects your photo helps you fix it quickly. These are the five most common errors CET applicants face:
Photo File Size Too Large
A photo taken on a smartphone is typically 3MB to 8MB - far above the 50KB maximum. Even WhatsApp-compressed photos are often 100KB to 300KB, which is still too large. The portal will reject anything above the size limit with no exceptions.
Wrong Image Format
Many students photograph their documents on iPhones, which save images as HEIC format by default. Android phones often save in PNG. Both formats are rejected by CET portals, which accept JPEG only. Simply renaming a file from .png to .jpg does not convert it - the file must be genuinely converted to JPEG.
Blurry or Dark Photo
A blurry photo or one taken in poor lighting may be accepted by the portal but rejected by the exam authority during document verification. This can disqualify your application at a later stage even if the form was submitted successfully.
Incorrect Dimensions
Some students upload a square photo or a rectangular photo that does not match the 3.5cm × 4.5cm ratio required for passport-size images. The portal may accept the upload but display the image incorrectly, leading to verification issues.
Background Not White
Many state CET portals specifically require a plain white background. Photos with grey, blue, or coloured backgrounds are rejected. Studio photos with off-white or cream backgrounds are sometimes also flagged.
How to Resize CET Exam Photo in Seconds
The easiest way to fix all of the above problems at once is to use SignResizer - a free online tool designed specifically for Indian government exam and entrance test applications.
SignResizer handles every requirement in a single step:
- Compresses your photo to exactly 20KB–50KB
- Converts HEIC, PNG, BMP, and TIFF files to proper JPEG format
- Resizes the image to the correct pixel dimensions automatically
- Preserves image quality while reducing file size
- Works on mobile - no app download needed
- No registration or login required
Unlike general image compressors, SignResizer includes presets built for CET exams and other government entrance tests, so you get the exact file size and format required without any guesswork.
Step-by-Step Guide to Resize Your CET Photo
Follow these six steps to prepare a perfectly sized CET exam photo:
Step 1 - Open SignResizer
Visit https://www.signresizer.com on your phone or computer. No installation or account required.
Step 2 - Upload Your Photo
Click the Upload button and select your passport-size photo from your device. The tool accepts JPG, PNG, HEIC, BMP, and TIFF formats.
Step 3 - Choose the CET Photo Preset
Select the CET Photo preset or the SSC Photo (20KB–50KB) preset. This automatically sets the correct file size range and dimensions for CET exam portals. If your exam has different requirements, use the Custom Size option to enter the exact KB range manually.
Step 4 - Adjust If Required
If your exam requires specific pixel dimensions different from the default, enter them in the custom dimension fields. For most CET exams, the default 3.5cm × 4.5cm preset works correctly.
Step 5 - Click Resize
Click the Resize button. SignResizer compresses your photo, converts it to JPEG, and resizes it to the correct dimensions - all in under five seconds.
Step 6 - Download and Upload
Click Download to save the optimised JPEG to your device. Your photo is now ready to upload directly to the CET application portal.
Tips to Upload a Perfect CET Exam Photo
The quality of your original photo matters as much as the file size. A well-taken photo looks professional during verification and reduces the chance of rejection.
Use a plain white background. Hang a white sheet or sit in front of a white wall. Avoid textured, patterned, or coloured backgrounds entirely.
Ensure proper lighting. Photograph near a window in daylight, or use a bright lamp placed in front of you. Avoid overhead lighting, which creates shadows under the eyes and chin.
Avoid shadows on your face. Make sure light falls evenly on your face. Shadows on one side or a shadow from the background can cause the image to fail automated checks.
Use a recent photo. CET authorities require a recent photograph, typically taken within the last three to six months. Using an old photo can cause issues during document verification.
Face the camera directly. Look straight into the camera with a neutral expression and mouth closed. Glasses are not recommended as they can cause glare or reflection issues.
Use a good camera. A modern smartphone camera on the rear (not the selfie camera) in good lighting gives more than enough quality for a 20KB–50KB JPEG.
Related Guides for Government Form Images
If you are preparing multiple documents for CET or other entrance exams, these guides will help you get every image right:
- Why Government Form Photo Gets Rejected - 5 Common Reasons - Understand every reason portals reject photos and how to fix each one instantly.
- How to Reduce Signature Size to 10KB for Govt Forms - Compress your signature to the exact 10KB–20KB required by most exam forms.
- Passport Size Photo Dimensions in Pixels - Complete Guide - Understand the 413×531 pixel standard and get your dimensions right for every exam.
Frequently Asked Questions
What photo size is required for CET exam forms?
Most CET exam forms including Maharashtra MHT CET and Delhi CET require a passport-size photo between 20KB and 50KB in JPEG/JPG format. The dimensions are typically 3.5cm × 4.5cm with a plain white background. Always check the official notification for your specific exam as requirements can vary slightly.
How can I resize my CET photo online for free?
Visit SignResizer, upload your photo, select the CET Photo or SSC Photo preset, and click Resize. The tool automatically compresses your image to 20KB–50KB in JPEG format. No registration or payment is required and the resized photo can be downloaded instantly.
What format is required for CET application photos?
CET exam portals require photos in JPEG or JPG format only. PNG, HEIC, BMP, and TIFF files are not accepted. If your photo is saved in another format - for example HEIC on iPhone - you must convert it to genuine JPEG before uploading. SignResizer converts any format to JPEG automatically.
How do I reduce my photo size to 50KB?
Upload your photo to SignResizer, select the CET Photo preset (20KB–50KB), and click Resize. The tool uses smart compression to reduce the file size to within the required range without visibly affecting the quality of the image. The result is a properly compressed JPEG ready for any CET portal.
Can I use the same photo for multiple CET exams?
Yes, if all your target exams have the same requirements - typically 20KB–50KB JPEG at 3.5cm × 4.5cm - then a single properly resized photo works for all of them. Use SignResizer to prepare one master photo that meets these standard requirements and use it across Maharashtra CET, Delhi CET, and other state entrance tests.
What happens if my CET photo is rejected?
If your photo is rejected at the time of upload, check the error message carefully. The portal usually specifies whether the problem is file size, format, or dimensions. Fix the issue using SignResizer and re-upload before the application deadline. If your application was submitted with an incorrect photo and rejected at verification, you may need to contact the exam authority directly.
Resize Your CET Exam Photo Now
Don't let a photo upload error delay your application or cause it to be rejected. With SignResizer, you can prepare a perfect 20KB-50KB JPEG photo for any CET exam in under 60 seconds - completely free.
Resize Your CET Photo Free at SignResizer →
No registration. No app download. Works on Android, iPhone, and computer. One click - done.