SSC GD Constable 2026 Signature & Thumb Size — Resize Free

Free · works on your phone · about 2 min

What you'll need

Signature 10–20 KB · JPG
Thumb impression 10–30 KB · JPG
Photo: taken live in the form, no upload needed. Live photo tips

Need just one file? Tap it.

Specs from the SSC notice: Constable (GD) in CAPFs, SSF, Rifleman (GD) in Assam Rifles and Sepoy in NCB 2026 · checked 22 Oct 2026 ·Source (page 10)

Photo is taken live in the form

You don't need to upload a photo for SSC GD Constable. The form takes it with your webcam or phone camera. Here's how to get the live photo right:

Find a place with good light and a plain background
Keep the camera at eye level
Sit directly in front of the camera and look straight ahead
Keep your whole face inside the frame, not too close or too far
No cap, mask or glasses/spectacles
Do not point the camera at an old printed photo; that gets the form rejected

Upload sizes

Signature 10–20 KB

709×236 px · 6×2 cm (derived) · JPG · 300 DPI
- Black ink on white paper
- Signature must fill the box; blurred or tiny signatures are rejected
- Keep it horizontal, not slanted
Note: ≈709×236 px, derived from 6.0×2.0 cm at 300 DPI (the GD notice says 300 DPI). Other SSC exams use 200 DPI.
Thumb impression 10–30 KB

JPG · Optional: Only if the online form shows a thumb upload
- Black or blue ink on white paper
- Only if the form asks for it
Note: Not in the official notice; some guides mention a 10–30 KB thumb upload. Use it only if the form asks.

SSC GD Constable 2026 document sizes
Document	Size	File size	Format	DPI	Rules
Signature	709×236 px 6×2 cm (derived)	10–20 KB	JPG	300	Black ink on white paper Signature must fill the box; blurred or tiny signatures are rejected Keep it horizontal, not slanted Note: ≈709×236 px, derived from 6.0×2.0 cm at 300 DPI (the GD notice says 300 DPI). Other SSC exams use 200 DPI.
Thumb impression Optional : Only if the online form shows a thumb upload	Any (keep your crop)	10–30 KB	JPG	—	Black or blue ink on white paper Only if the form asks for it Note: Not in the official notice; some guides mention a 10–30 KB thumb upload. Use it only if the form asks.

Upload errors and how to fix them

These are the messages the SSC GD Constable portal shows. Each one has a fix.

Error: Applications with blurred/miniature signatures will be rejected summarily: Fix: This line is in the SSC GD notice. "Miniature" means the ink is tiny inside a big white image. Crop close to the signature so the ink fills most of the 6×2 cm box; Clean signature does this for you.
Error: File size should be between 10 KB and 20 KB: Fix: A plain signature often saves below 10 KB. Auto-fit raises the quality (and adds invisible padding if needed) to land between 10 and 20 KB.
Error: Invalid file format: Fix: The signature must be JPEG/JPG. Do not upload a PNG screenshot or a PDF scan.
Error: Photograph captured is not as per the instructions: Fix: The live photo was taken with a cap, glasses, a dark room or a face cut off by the frame. Recapture before submitting; you can retake it as many times as needed.
Error: Signature should be horizontally aligned: Fix: A slanted or vertical signature is rejected in GD. Rotate it straight in the crop screen before Auto-fit.

About the SSC GD Constable upload rules

SSC GD Constable is a little different from other SSC exams. The photo is still captured live, but the signature instructions in the GD notice add a resolution: 6.0 cm × 2.0 cm at 300 DPI. The 2026 cycle took applications from 01.12.2025 to 31.12.2025, so expect the next form around December.

What 300 DPI means for you

Most SSC exams work out to about 472×157 px at 200 DPI. At 300 DPI the same 6.0×2.0 cm becomes about 709×236 px. The file size limit does not change: 10–20 KB, JPG. SahiSize makes the 709×236 px version for GD and writes 300 DPI into the file.

A larger image with the same KB limit means the background must be clean. Grey paper or a shadow adds weight to the file. Clean signature removes both.

Signature checklist

Black ink on white paper.
Horizontal, not slanted. The GD notice asks for a horizontally aligned signature.
Large enough to fill the box. The notice names “miniature” signatures as the main reason for rejection.
Your normal signature, the same one you will use at the exam and the PET.

Thumb impression

The official notice asks only for the signature. Some guides mention a 10–30 KB thumb upload. If your form shows that field, make it here; if not, skip it.

The live photo

Use good light and a plain background, keep the camera at eye level, and look straight ahead with your whole face in the frame. No cap, mask or spectacles. The notice includes sample photos of acceptable and unacceptable captures; take another shot if yours looks dark or cut off.

If the signature keeps failing

Check, in order: the file is JPG; it is between 10 and 20 KB; the signature is straight and fills most of the image. Rotate it in the crop screen if it slopes, then run Auto-fit again from the original picture.

SSC GD Constable size FAQ

Do I need to upload a photo for SSC GD?

No. The photo is taken live in the form with your webcam or the mySSC app. Do not point the camera at an old printed photo; SSC rejects such forms.

What is the signature size for SSC GD?

About 6.0 cm wide × 2.0 cm high, 10–20 KB, JPG. In pixels that is about 709×236 at 300 DPI; SahiSize makes exactly that.

Why is the SSC GD signature bigger in pixels than SSC CGL?

The GD notice says 6.0×2.0 cm "at a resolution of 300 DPI", which works out to about 709×236 pixels. The KB limit is the same 10–20 KB.

Do I need to upload a thumb impression for SSC GD?

The official notice asks only for the signature. Some guides mention a thumb upload of 10–30 KB; if your form shows that field, make it here.

What if I use Aadhaar authentication for SSC GD?

SSC says forms submitted through Aadhaar-based authentication are not rejected for photo or signature quality. You still need to upload a signature, so make it right anyway.

What is the most common reason SSC GD signatures are rejected?

The notice itself says it: "miniature" signatures, a small signature inside a large white image. Crop tight so the ink fills the box.

Tools for single files

All SSC exams