Updated · how we check
GATE photo and signature size
The GATE form takes a photo of 200 × 260 to 530 × 690 px, 5 KB–600 KB and a signature of 250 × 80 to 580 × 180 px, 3 KB–300 KB, both as JPG/JPEG.
GATE photo
JPG · 5-600 KB (5,120-600,000 bytes) · 200x260 px · white background
PixelFit aims between 5,120 and 600,000 bytes, so the file passes whether the form counts 1 KB as 1,000 or 1,024 bytes.
Fit, background and padding crop to fill · white background · padding off
Saving presets is part of Pro.
The result appears here: the exact byte count, pixel size and quality, the size before and after, a preview and a download button.
The batch kit (one ZIP for up to 500 photos, several photos merged into one PDF) is part of Pro.
GATE upload specifications
Values for the GATE 2026 application (GOAPS), copied from GATE 2026 Photograph & Signature, IIT Guwahati, checked 31 October 2026; "not stated" means the source gives no figure for it.
| Upload | Pixel size | Print size | File size | Format | Background |
|---|---|---|---|---|---|
| Photo | 200 × 260 to 530 × 690 px | not stated | 5 KB–600 KB | JPG/JPEG | white, no other objects or persons |
| Signature | 250 × 80 to 580 × 180 px | not stated | 3 KB–300 KB | JPG/JPEG | not stated |
GATE sizes in pixels and millimetres
Print sizes become pixels at a resolution (pixels = mm ÷ 25.4 × DPI); pixel sizes become print sizes the other way round. Computed for the GATE uploads at 200 and 300 DPI.
| Upload | Aspect ratio | Megapixels | At 200 DPI | At 300 DPI |
|---|---|---|---|---|
| Photo | 0.77 (W/H at both limits) | 0.05–0.37 MP | 25.4–67.3 mm wide | 16.9–44.9 mm wide |
| Signature | 3.13–3.22 (W/H at the limits) | 0.02–0.10 MP | 31.8–73.7 mm wide | 21.2–49.1 mm wide |
What the GATE KB limits mean in bytes
The GATE photo range of 5 KB–600 KB is 5,120 to 600,000 bytes if you want a file that passes whether the portal counts 1,000 or 1,024 bytes per KB: a window of 594,880 bytes to aim for.
The GATE signature range of 3 KB–300 KB is 3,072 to 300,000 bytes if you want a file that passes whether the portal counts 1,000 or 1,024 bytes per KB: a window of 296,928 bytes to aim for.
Estimated JPG file size for GATE uploads
Estimated from sizes measured with sharp 0.35.5 / libvips 8.18.7 on public-domain sample images (31 October 2026), interpolated to each target size. Your own scan can land 30-50% either side, which is why the tool measures the real file.
| Upload | Pixel size used | Quality 60 | Quality 75 | Quality 85 | Quality 95 | Limit |
|---|---|---|---|---|---|---|
| Photo | 200 × 260 px | 8.8 KB | 11.2 KB | 14.4 KB | 24.1 KB | 5 KB–600 KB |
| Signature | 250 × 80 px | 1.6 KB | 2.2 KB | 3.1 KB | 5.8 KB | 3 KB–300 KB |
Will the GATE photo fit the limit?
For the GATE photo at 200 × 260 px, even quality 95, the highest setting estimated here, stays under 600 KB at about 24.1 KB, and quality 85 (14.4 KB) clears the 5 KB minimum.
For the GATE signature at 250 × 80 px, even quality 95, the highest setting estimated here, stays under 300 KB at about 5.8 KB, and quality 85 (3.1 KB) clears the 3 KB minimum.
GATE rejection checklist
Upload checks computed from the GATE specification; a file that fails any one of them is usually refused at upload or flagged later.
- Photo: File type is JPG/JPEG (a PNG or HEIC renamed to .jpg is still rejected).
- Photo: The GATE photo file is no larger than 600 KB (600,000 bytes is safe under both KB definitions).
- Photo: The GATE photo file is at least 5 KB (5,120 bytes or more); files under the minimum are rejected even when they look sharp.
- Photo: Pixel size is 200 × 260 to 530 × 690 px (the smallest and largest sizes accepted; the shape rule below also applies).
- Photo: Width ÷ height is between 0.66 and 0.89; a size inside the pixel range with another shape is rejected.
- Photo: Background: white, no other objects or persons.
- Signature: File type is JPG/JPEG (a PNG or HEIC renamed to .jpg is still rejected).
- Signature: The GATE signature file is no larger than 300 KB (300,000 bytes is safe under both KB definitions).
- Signature: The GATE signature file is at least 3 KB (3,072 bytes or more); files under the minimum are rejected even when they look sharp.
- Signature: Pixel size is 250 × 80 to 580 × 180 px (the smallest and largest sizes accepted; the shape rule below also applies).
- Signature: Width ÷ height is between 2.75 and 3.75; a size inside the pixel range with another shape is rejected.
How to resize your photo for GATE
-
Take or scan the photo
Use a recent photo (background: white, no other objects or persons).
-
Load the preset
Drop the file into the tool at the top of this page. The "GATE photo" preset is already set to 200 × 260 px (the form accepts 200 × 260 to 530 × 690 px) and 5 KB–600 KB, as JPG/JPEG.
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Check the result
Read the before and after sizes: the GATE photo must end between 5,120 and 600,000 bytes. If it ends under 5 KB, open "Fit, background and padding" and tick the option to pad a file that ends up below the minimum. Download it.
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Switch to the signature
Pick the "GATE signature" preset, set to 250 × 80 px (the form accepts 250 × 80 to 580 × 180 px) and 3 KB–300 KB as JPG/JPEG, and repeat with the signature file. If it ends under 3 KB, open "Fit, background and padding" and tick the option to pad a file that ends up below the minimum.
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Upload and preview
Upload the files on the GATE form and check the preview before you submit; verify the figures with the official notice first.
What the GATE source also says
- Photo: Aspect ratio (width/height) between 0.66 and 0.89.
- Photo: After cropping, the face covers 60-70% of the image.
- Signature: Height to width 1 : R with R between 2.75 and 3.75.
- Signature: The signature covers 70-80% of the cropped image.
GATE compared with similar forms
Of these 5 forms, the GATE photo limit of 600 KB is the most generous; a file made for a stricter form usually passes a more generous one only if it also meets the minimum and the pixel size.
| Form | Photo size | Photo file size | Signature file size |
|---|---|---|---|
| GATE (this page) | 200 × 260 to 530 × 690 px | 5 KB–600 KB | 3 KB–300 KB |
| UPSC | 350 × 350 to 1,000 × 1,000 px | 20 KB–300 KB | 20 KB–300 KB |
| CTET | 35 × 45 mm | 10 KB–100 KB | 3 KB–30 KB |
| NBEMS | no pixel size stated | at most 80 KB | at most 80 KB |
| IBPS PO | 200 × 230 px (preferred) | 20 KB–50 KB | 10 KB–20 KB |
Where the GATE figures come from
This page covers Graduate Aptitude Test in Engineering 2026.
Verify with the official GATE notice before you submit: forms change between application cycles and the check on the live portal is final.
Sources
- GATE 2026 Photograph & Signature, IIT Guwahati, Indian Institute of Technology Guwahati (GATE 2026 organising institute), checked 31 October 2026: gate2026.iitg.ac.in/photograph-and-signature.html
- Measured by PixelFit with sharp 0.35.5 / libvips 8.18.7 on 31 October 2026, interpolated to each GATE target size, on these samples: head-and-shoulders portrait, Pete Souza (Official White House photo), public domain: commons.wikimedia.org/wiki/File:President_Barack_Obama.jpg; handwritten letter with signature, Ulysses S. Grant (via DPLA), public domain: commons.wikimedia.org/wiki/File:Ulysses_S._Grant_letter_t…
Frequently asked questions
What is the photo size for GATE in KB?
The GATE photo must be 5 KB–600 KB (keep it at or under 600,000 bytes to be safe), 200 × 260 to 530 × 690 px, as JPG/JPEG.
What is the signature size for GATE?
The GATE signature must be 3 KB–300 KB, 250 × 80 to 580 × 180 px, as JPG/JPEG.
How do I resize my photo to 600 KB for GATE?
Open the tool on this page with the GATE photo preset, drop the file and download the result: it searches JPG quality until the file is under 600 KB and over 5 KB; at 200 × 260 px expect about 14.4 KB at quality 85. Nothing is uploaded.
What pixel size should the GATE photo be?
200 × 260 to 530 × 690 px.
Can I upload a PNG or PDF for the GATE photo?
Only JPG/JPEG; PNG, PDF, HEIC are not listed. The tool can turn a PNG, WebP or (in Safari) HEIC file into JPG while it resizes.
Related
Similar forms
- UPSC photo and signature size 20 KB–300 KB
- CTET photo and signature size 10 KB–100 KB
- NBEMS photo and signature size at most 80 KB
- IBPS PO photo and signature size 20 KB–50 KB
- ISRO ICRB photo and signature size 20 KB–50 KB
- MAH B.P.Ed CET photo and signature size 20 KB–50 KB
Compress to the GATE limits
- Compress an image to 600 KB GATE photo limit 5 KB–600 KB
- Compress an image to 300 KB GATE signature limit 3 KB–300 KB
Resize to the exact size
Change the file format
- PNG to JPG GATE accepts JPG/JPEG
- WEBP to JPG GATE accepts JPG/JPEG
- HEIC to JPG GATE accepts JPG/JPEG