How to resize a signature to 10–20 KB
- Sign in black ink on plain white paper and take a well-lit photo or scan.
- Crop tightly around the signature with the Image Cropper so little white space remains.
- Select the cropped image here. The preset is 140×60 px, 10–20 KB; switch to the SSC preset or type your own numbers if your form differs.
- Click Resize and download the JPG.
Common signature size requirements
Online application forms for government exams, bank recruitment, university admissions and public service commissions almost always ask for a scanned signature with strict limits. A frequent combination is 140×60 pixels, 10–20 KB, JPG/JPEG (IBPS, SBI). SSC gives about 6×2 cm and 10–20 KB. Other forms ask for 3.5×1.5 cm, or ranges such as 10–50 KB or 30–50 KB. Type those numbers in and the tool adapts.
Always check your official notice. Exam bodies change photo and signature rules between cycles, and some (such as SSC) now capture the photo live during the application instead of taking an upload. The presets here were last checked on 13 November 2026; every value can be edited to match your notice exactly.
Why the upload keeps failing
- File too large: a phone photo of a signature is often 2–4 MB. This page fixes that.
- File too small: some forms reject files under 10 KB. This tool pads the file to the minimum automatically.
- Wrong dimensions: the output is exactly the width and height you set.
- Wrong format: the output is always JPG, which every form accepts.
- Unclear signature: dark shadows or a grey background make it hard to read once small. Use daylight and crop closely, or tick Black and white.
Photo as well as signature?
Use the Exam Photo & Signature Resizer or the IBPS & SBI preset. For a passport-style print, use Resize to 3.5×4.5 cm. Your signature is processed on your own device and never uploaded.
Frequently asked questions
What size should a signature be for online forms?
Many Indian exam and bank recruitment forms (for example IBPS and SBI) ask for about 140×60 pixels and 10–20 KB in JPG. SSC uses about 6×2 cm and 10–20 KB. Other forms differ, so always check the official notice.
My signature comes out under 10 KB. What should I do?
Nothing: when a clean signature compresses below the minimum, this tool pads the JPG file up to the minimum with harmless comment data. The picture stays the same and the form's size check passes.
Should I use black or blue ink?
Follow the form instructions. Most ask for black ink on plain white paper, which also stays readable at small sizes.
Can I set my own size?
Yes. Choose Custom, or simply type a new width, height, minimum or maximum KB.