Hello friend, SSC GD Constable is one of those exams where the document upload step trips up more people than usual. Not because it is complicated, but because GD is the only SSC exam that requires three separate document uploads instead of two. Photo, signature, and left thumb impression. Three files, three different size requirements, all needed before you can submit the application.
This article gives you every number you need for all three documents, explains what each one should look like, and walks you through how to prepare them. If you are sitting with your phone trying to figure out why your thumb impression file keeps getting rejected, this is the right place.
SSC GD Constable Photo Requirements 2026
Your passport-size photograph for SSC GD 2026 needs to meet these specifications:
- Width: 200 pixels
- Height: 240 pixels
- File size: minimum 20KB, maximum 50KB
- Format: JPG or JPEG only
The GD photo dimensions are 200x240 pixels, which is slightly taller than the 200x230 used by CHSL and MTS. It is a small difference but the portal checks exact dimensions and will reject a 200x230 file even though it looks identical to the human eye.
For the photo content itself:
- Plain white or light background, no patterns or objects behind you
- Full frontal face with both ears visible
- No spectacles or tinted eyewear
- No cap or head covering
- Recent photograph, not something from two or three years ago
- Clear, well-lit, not blurry or pixelated
Resize your GD photo using the SSC GD photo resizer at sscphotoresizer.in. Select SSC GD from the exam menu, select Photo, upload your image and download the correctly sized output. The tool sets 200x240 pixels and 20KB to 50KB automatically when you select GD.
SSC GD Constable Signature Requirements 2026
The signature for SSC GD uses different dimensions compared to CHSL and MTS. Pay attention to this if you are applying for multiple SSC exams at the same time.
- Width: 240 pixels
- Height: 80 pixels
- File size: minimum 10KB, maximum 20KB
- Format: JPG or JPEG only
GD signature is 240x80 pixels. CHSL and MTS signature is 140x60 pixels. They look similar in shape but the actual pixel counts are quite different. Do not use a CHSL signature file for your GD application. Resize separately using the GD preset.
For the signature itself:
- Sign on plain white unruled paper
- Use black or blue ink pen, black is safer for better contrast
- Signature must be in your natural cursive or signing style
- Not in printed capital letters, SSC rejects block capital signatures
- Clear and legible, photographed without shadows
For a detailed guide on how to take a good signature photo and what mistakes cause blurry output, read the SSC signature preparation tips guide.
SSC GD Constable Thumb Impression Requirements 2026
This is the one that makes GD different from every other SSC exam. You need to upload a left thumb impression as a separate image file.
- Width: 240 pixels
- Height: 240 pixels
- File size: minimum 20KB, maximum 50KB
- Format: JPG or JPEG only
The thumb impression is a square image, 240x240 pixels. The file size range is the same as the photo, 20KB to 50KB. This is a JPG upload just like the photo and signature.
How to take the thumb impression:
Get a blue or black ink stamp pad. The kind used for official documents. Press your left thumb firmly and evenly on the ink pad. Then press it onto a clean sheet of plain white unruled paper. The impression should show the full fingerprint pattern clearly. Lift your thumb straight up, do not slide it or you will smear the print.
Take a photo of the impression with your phone camera. Same process as the signature photo. Hold the phone directly above the paper, good lighting, tap on the impression to focus before clicking. The impression should appear dark and clear against a white background.
Resize it at sscphotoresizer.in/tool/ssc-gd by selecting SSC GD and choosing Thumb Impression as the document type. The tool sets 240x240 pixels and 20KB to 50KB automatically. Upload, process, download.
All Three SSC GD Requirements in One Table
| Document | Width | Height | File Size | Format |
|---|---|---|---|---|
| Photo | 200 px | 240 px | 20 to 50 KB | JPG |
| Signature | 240 px | 80 px | 10 to 20 KB | JPG |
| Left Thumb Impression | 240 px | 240 px | 20 to 50 KB | JPG |
Three documents, three uploads, all JPG format. Photo and thumb impression share the same KB range. Signature has a tighter range. Keep these numbers handy because you will need to verify each file before uploading.
SSC GD vs Other SSC Exams - Document Comparison
If you are applying for both GD and another SSC exam like CHSL or MTS, here is a direct comparison so you know exactly which files are interchangeable and which are not.
| Requirement | SSC GD Constable | SSC CHSL 2026 | SSC MTS 2026 |
|---|---|---|---|
| Photo dimensions | 200 x 240 px | 200 x 230 px | 200 x 230 px |
| Photo file size | 20 to 50 KB | 20 to 50 KB | 20 to 50 KB |
| Signature dimensions | 240 x 80 px | 140 x 60 px | 140 x 60 px |
| Signature file size | 10 to 20 KB | 10 to 20 KB | 10 to 20 KB |
| Thumb impression | Yes, 240x240 px | Not required | Not required |
Photo dimensions are different for GD compared to CHSL and MTS, so you cannot reuse the same photo file across these exams. Signature dimensions are also different. Prepare all three GD documents separately using the GD preset at sscphotoresizer.in.
Common Problems with the Thumb Impression Upload
The thumb impression step has a few specific failure modes that are worth knowing about before you attempt it.
Impression too faint. If you did not press hard enough on the ink pad or there was not enough ink, the fingerprint impression on the paper will be light and the portal's document check may flag it as unclear. Press your thumb firmly on the ink pad, hold it for 2 seconds, then press firmly on the paper.
Impression smeared. If you moved your thumb while lifting it from the paper, the ridges blur together. Practice on a scrap paper first to get the motion right. Press down, hold, lift straight up without sliding.
Wrong finger. SSC GD specifically requires the left thumb impression. Not the right thumb, not an index finger. Left thumb. Double check before you photograph it.
Background not white. If you took the impression on a yellow or cream notebook page, the background is not clean white. Use fresh white A4 paper.
Ink pad too dry. Old ink pads that have not been used recently may not transfer enough ink for a clear impression. If you do not have a good ink pad at home, chemist shops, stationery shops, and post offices usually have stamp pads available.
How to Prepare All Three Documents Before Opening the Portal
Because GD requires three documents, preparation before opening the application portal is even more important here than for other SSC exams. Rushing to prepare files while the form session is open is not a good idea.
Here is a sensible order to prepare everything:
Day before or morning of your application:
First, sort out your signature. Sign on plain white paper with black ink, photograph it, resize at sscphotoresizer.in using the GD preset and Signature document type. Download and verify the file is 240x80 pixels and between 10KB and 20KB.
Second, do the thumb impression. Get your ink pad, press your left thumb firmly, make the impression on clean white paper. Let it dry for a minute before photographing it. Resize using GD preset and Thumb Impression document type. Download and verify the file is 240x240 pixels and between 20KB and 50KB.
Third, prepare your photo. Photograph your passport photo or use a digital copy, resize using GD preset and Photo document type. Download and verify the file is 200x240 pixels and between 20KB and 50KB.
Create a folder on your phone called SSC GD Documents and move all three files into it. Now when you open the portal, you can upload each one in about 30 seconds total.
Verifying Your Files Before Upload
After downloading your resized files, check each one before you start the form.
On Android: Open your file manager, go to Downloads, long press the file and tap Properties or Details. Check the pixel dimensions and file size.
On laptop: Right click the file, go to Properties, then the Details tab. Dimensions and file size are both shown there.
Confirm each file against the table earlier in this article. Photo should be 200x240, signature should be 240x80, thumb impression should be 240x240. All three should be JPG. File sizes within the specified KB ranges.
If any file is off, go back to sscphotoresizer.in/tool/ssc-gd and redo that document. It takes under a minute to redo any one of them.
SSC GD Photo and Signature Checklist
Photo:
- 200x240 pixels
- 20KB to 50KB
- JPG format
- Plain background, no spectacles, full face visible
Signature:
- 240x80 pixels
- 10KB to 20KB
- JPG format
- Black or blue ink on white paper, cursive not capitals
Left Thumb Impression:
- 240x240 pixels
- 20KB to 50KB
- JPG format
- Left thumb, clear impression, dark ink on white paper
All three checked means you are ready to start the form.
Final Thoughts
SSC GD document preparation takes maybe 15 minutes more than other SSC exams because of the third document. That is really the only extra work involved. The thumb impression is actually simpler to prepare than the signature in some ways because you do not need to worry about style or capital letters or ink quality in the same way.
Get an ink pad if you do not have one. Make a couple of practice impressions before taking the one you photograph. And do all three documents the evening before you plan to fill the form so there is no time pressure.
If you need the resize process explained step by step for phone or laptop, the how to resize photo for SSC online form guide covers that in detail. And for comparing GD signature requirements against other SSC exams, the SSC signature size guide for all exams has the full comparison table.
Good luck with the GD application and with the exam itself. Physical fitness test is the real challenge with GD. The document upload is just paperwork.