Every Indian government exam and document application asks for a photo and signature in a specific size, and getting it wrong means your form gets rejected. SSC wants 100KB JPG, UPSC wants 300KB, NEET wants a postcard-sized photo, and PAN card wants something else entirely. Instead of digging through ten different notification PDFs, here’s every major exam and document’s exact photo and signature requirements in one place. Whether you’re hunting down passport photo size in cm or the exact KB limit for your next application, this guide covers it. Our Photo & Signature Resize tool handles all these formats automatically so you don’t have to worry about pixel dimensions or file size limits.
Indian Passport Photo Size (The Standard Everyone References)
The standard Indian passport photo is 3.5 cm wide by 4.5 cm high. At 300 DPI, that translates to roughly 413 × 531 pixels. File size is typically under 300KB for online submissions. Background should be white or very light, with no shadows on the face or behind the head. Your face should cover about 70-80% of the frame, with clear visibility of facial features and no extreme close-up.
This is the baseline most other document photos reference. When an application says “passport size photo,” they generally mean 3.5 × 4.5 cm unless stated otherwise in the specific notification. A lot of students assume any small rectangular photo will do, then wonder why the upload portal keeps throwing errors. It won’t always tell you the dimensions are off. It’ll just say “invalid file.” If you’re applying for a passport itself, these same dimensions apply. For exam forms, they’re the starting point most portals expect. Our Passport Photo Maker generates photos that meet these exact requirements, cropping and resizing automatically.
SSC Exam Photo & Signature Requirements (CGL, CHSL, MTS, GD)
Staff Selection Commission exams, including CGL, CHSL, MTS, and GD, are famously strict about photo and signature specs. Photo: JPG or JPEG format, 100KB maximum, dimensions typically 3.5 × 4.5 cm. Signature: JPG/JPEG, 20-50KB, captured on white paper with black or dark blue ink. White background is mandatory for the photo.
SSC is unyielding on file size. A 101KB photo when the limit is 100KB gets rejected at the upload stage with a generic “invalid file” message and no further explanation. This often leads to last-minute scrambling when the application deadline is hours away. SSC hasn’t changed these core specs dramatically in recent cycles, but enforcement has tightened as more applications moved fully online. The SSC Photo & Signature Resize tool compresses to exactly the right KB limit so you don’t have to guess.
UPSC Photo & Signature Requirements (CSE, CDS, NDA)
The Union Public Service Commission, which conducts CSE, CDS, and NDA, allows more generous file size limits but is stricter about photo quality. Photo: JPG format, 300KB maximum. Signature: JPG, 300KB maximum. They want a recent, clear, professional-looking photograph with no visible editing. No selfies, no casual shots, no filters that alter your features.
UPSC often specifies that the photo should be taken within the last six months, clearly showing your face against a plain light background. You can’t reuse an old photo that technically fits the dimensions. Some applicants argue a slightly older photo still looks like them and UPSC won’t notice. Their verification process may flag it anyway, and re-uploading during a tight application window is stressful. Use the UPSC Photo Resize tool to make sure your image meets these standards before you submit.
NEET Photo & Signature Requirements
NEET has a dual photo requirement that trips up students every year. For the physical admit card, you need a postcard-sized photograph measuring 4 inches by 6 inches. For the online application, you need a separate passport-size upload: 50KB maximum, JPG format. Signature: 50KB maximum, JPG. You need two different photo sizes for the same exam.
The postcard-size photo catches people off guard because no other major exam asks for it. It needs to be printed and affixed to your admit card, so ensure it’s high resolution. You’ll need it at the exam center, so prepare it in advance rather than scrambling the night before. The online upload is where most rejections happen, since the 50KB limit is tight for a clear face shot. The NEET Photo Resize tool handles the online upload version of your photograph and signature.
GATE Photo & Signature Requirements
GATE deviates from centimeter-based sizing by specifying exact pixel dimensions. Photo: 480 pixels wide by 640 pixels high, maintaining a strict 3:4 aspect ratio, 200KB maximum, JPG format. Signature: 160 pixels wide by 560 pixels high, 150KB maximum. This direct pixel specification is unusual among Indian exams, and it means a standard passport-size photo often needs precise cropping.
Most students find their existing photos don’t match the 480 × 640 requirement without adjustment. Simply shrinking a photo to fit the file size won’t fix a wrong aspect ratio. Your face ends up stretched or cropped awkwardly. The GATE Photo Resize tool handles the crop and compression together so both dimensions and KB limits are satisfied.
RRB Photo & Signature Requirements (NTPC, Group D, ALP)
Railway Recruitment Board exams, including NTPC, Group D, and ALP, have some of the tightest file size limits among major government examinations. Photo: 20-50KB, JPG, dimensions around 3.5 × 4.5 cm. Signature: 10-20KB, JPG. Meeting these limits while keeping the image clear is genuinely difficult.
It’s not enough to resize. You need quality compression that reduces file size without making the image look pixelated or blurry. RRB has the tightest limits of any major exam. Getting a clear photo under 20KB requires smart compression, not just dragging a slider in a basic editor. The RRB Photo Resize tool is optimized for exactly this problem.
PAN Card Photo Requirements (NSDL/UTI)
PAN card applications through NSDL and UTI require photos in JPG format, 50KB maximum, on a white background. Critically, the photo must be taken without glasses. That rule catches a surprising number of applicants. Many people wear glasses daily or simply forget the instruction when filling out the form.
Remove your spectacles before shooting the photo. Don’t just darken the lenses in an image editor. That trick gets caught and leads to rejection. Signature files are also limited to 50KB in JPG format. The PAN Card Photo Resize tool handles both photo and signature preparation for PAN applications.
Quick Reference - All Specs in One Place
SSC caps photos at 100KB with a 20-50KB signature on a white background. UPSC allows up to 300KB for both photo and signature, with emphasis on recent, high-quality images. NEET wants a 50KB online photo plus a separate 4×6 inch postcard print for the exam center, with a 50KB signature. GATE specifies exact pixels: 480 × 640 for the photo and 160 × 560 for the signature, with 200KB and 150KB limits respectively. RRB is the strictest at 20-50KB for photos and 10-20KB for signatures. PAN card requires photos under 50KB, white background, no glasses. Every exam publishes these numbers in its notification. The hard part is collecting them all in one sitting when you’re filling out your third form of the year.
Common Mistakes That Get Your Application Rejected
The most common rejection reason across all exams isn’t the wrong photo composition. It’s the wrong file size. Your photo could be perfect in every other way, but at 101KB when the limit is 100KB, it’s rejected automatically. No human reviews it. No useful error message explains what went wrong.
Other frequent errors include using a photo older than six months, uploading low-DPI images that look fine on screen but pixelated when printed on an admit card, stretching a square photo into a rectangular slot (which distorts your face), or using a dark or busy background when white is required. Wrong aspect ratio is another silent killer. The portal accepts the upload, then rejects it during verification. Take a moment to check every requirement against the official notification. For exact KB targets, use our Image Compressor. For pixel or cm adjustments, the Image Resizer ensures your images fit perfectly.
Form rejections for photo issues are the most preventable problem in the entire exam application process. Every spec is published, every limit is known in advance, and the fix takes 30 seconds. Pick your exam from the Photo & Signature Resize tool, upload your photo, and download the correctly sized version. Then spend your time on the part that actually matters - studying.