Resize Photo & Signature for Indian Exams (2026 Guide)

Quick reference: photo and signature specs by exam

The table below lists the most commonly required specifications for major Indian exam portals. These are the standard values based on official notifications. Requirements can change each recruitment cycle, so treat this as a reliable starting point and always confirm the exact specification in the notification PDF for your specific exam and year.

Photo rules that apply to almost every portal

Even though different portals have different pixel dimensions and KB limits, the underlying photo quality rules are remarkably consistent across all Indian government exam applications. Getting these right prevents the most common rejection scenarios.

Background: plain white or off-white only

This is the single most common reason applications are rejected at the document verification stage. The background must be plain white or very light off-white. Cream, light grey, light blue, or any other colour is not acceptable, even if it appears nearly white to the eye. Outdoor backgrounds, studio gradient backgrounds, and walls with patterns or colours are rejected without exception.

If your original photo does not have a white background, the easiest fix is to use the SammaPix Passport Photo tool. Upload your photo, and the tool automatically removes the background and replaces it with a clean white one. No app installation needed, no upload to any server.

Face positioning and framing

Your face must occupy the majority of the frame and be centered in the image. Portals typically expect 70 to 80 percent of the photo area to show the face and upper shoulders. The top of the head should be close to the top of the frame, with minimal empty space above. The chin should sit near the lower third of the image.

Common framing mistakes include too much space above the head (leaving a large white area at the top), the face being too small in the frame, and the face being off-center. After applying a white background, use the SammaPix CropRatio tool to crop the image to the correct aspect ratio before resizing.

Lighting: no shadows on face or background

The photo must be evenly lit. Shadows falling across the face, shadows on the background behind the head, and harsh overhead lighting that creates dark areas under the eyes or nose are all grounds for rejection. The ideal photo is taken in soft, even, natural or diffused artificial light facing the light source. Avoid taking photos against a window (which creates backlight shadows) or under a ceiling light (which creates harsh top-down shadows).

Recency, expression, and accessories

The photo must be recent, typically taken within the past six months. Most portals prohibit caps, hats, and sunglasses. Spectacles (regular prescription glasses) are generally allowed if they do not obscure the eyes or create glare. The expression should be natural and neutral, eyes open and visible, mouth closed. Smiling is usually fine as long as the face is clearly visible.

Signature rules and common mistakes

The signature requirement trips up almost as many applicants as the photo requirement, but for different reasons. Most rejections happen because the signature file is too large, the crop is too loose (leaving too much white space around the signature), or the ink colour is wrong.

How to create the signature image correctly

• Use black ink on white paper. No blue ink. No pencil. No digital signatures created on a phone screen. The signature must be handwritten on plain white paper with a black pen. Blue ink is sometimes accepted for physical documents but is almost always rejected for exam portal uploads.
• Scan or photograph in good light. A flatbed scanner at 200 to 300 DPI produces the cleanest result. If scanning is not available, place the paper on a flat surface in bright, even light and photograph straight down with your phone camera. Avoid shadows and angle distortion.
• Crop tightly around the signature. Leave only a few pixels of white margin on each side. Large amounts of white space around a small signature increase the file size unnecessarily and sometimes cause portals to reject the image as not matching the expected format. Use CropRatio or any crop tool to cut close to the signature edges.
• Compress to the KB limit. A tightly cropped signature image on white paper is easy to compress significantly without any visible quality loss. Use sammapix.com/compress-to/20kb for a 20 KB target, or the compress tool to manually dial in any target size.

Step-by-step: resize and compress with free tools

The following workflow applies to both the photo and the signature. For the photo, start from step 1. For the signature, start from step 2 after you have scanned or photographed your signature on white paper.

Step 1: get a clean white-background photo

Open sammapix.com/tools/passport-photo and upload your photo. The tool removes the existing background and replaces it with a solid white background that meets exam requirements. Download the result as a JPEG before moving to the next step. Skip this step if your original photo already has a proper white background.

Step 2: crop to the correct aspect ratio

Open sammapix.com/tools/croproatio and upload the white-background photo. Set the crop area to match the aspect ratio specified in the notification. For UPSC (200x230), that is a portrait ratio of approximately 0.87:1. Adjust the crop box so the face is centered and well-framed, then download the cropped image. For signatures, crop tightly around the handwriting.

Step 3: resize to the exact pixel dimensions

Open sammapix.com/tools/resizepack and upload your cropped image. Enter the exact pixel width and height from the exam notification (for example, 200 for width and 230 for height for UPSC). Select JPEG as the output format. Download the resized image. This is the step that sets the pixel dimensions to exactly what the portal expects.

Step 4: compress to the required KB limit

This is where most guides fall short. Resizing the pixels does not automatically control the file size in kilobytes. A 200x230 pixel photo can still be anywhere from 5 KB to 500 KB depending on JPEG quality. You need to compress it to land within the allowed range.

The fastest method: use sammapix.com/compress-to/20kb for a 20 KB signature target, or replace the number in the URL for any other target: compress-to/50kb, compress-to/100kb, compress-to/300kb. The tool automatically finds the right JPEG quality level to hit exactly that file size. For signatures going into portals that require 20 KB or less, this is the most reliable approach available.

Alternatively, use sammapix.com/tools/compress to manually adjust the JPEG quality slider and watch the resulting file size update in real time. This gives you finer control if the portal has both a minimum and maximum KB requirement and you want to land precisely in the middle.

Step 5: verify file size before uploading

After downloading the compressed file, right-click it on your computer and check the file properties to confirm the actual size in KB. Portal upload forms sometimes display an error only after attempting the upload, which can waste time during peak application periods when servers are slow. Verifying locally takes ten seconds and eliminates a common frustration.

The whole workflow, from white background to final compressed file ready for upload, takes under two minutes per document once you have done it once. Both the photo and the signature follow the same sequence.

Common rejection reasons and how to avoid them

Exam portals reject photos and signatures at two points: at upload time (the portal shows an immediate error) and at document verification (a human reviewer rejects the application days or weeks later). The second type is more damaging because it can disqualify you after the registration window has closed. Here are the most common causes of both.