Increase signature size
Scanned signatures on white paper frequently compress to tiny file sizes (often only 3 KB to 8 KB) because they contain mostly empty white pixels. When uploading to SSC, IBPS, UPSC, or State Public Service Commission forms, the portal immediately rejects the file with "Signature file size must be between 10 KB and 20 KB". increasesize.in expands your signature file to the exact required size without blurring pen strokes or altering aspect ratios.
Increase signature size
Guaranteed valid file output • 100% private in browser memory (बिना किसी सर्वर अपलोड के सुरक्षित)
फाइल का साइज बढ़ाएं • डाउनलोड तुरंत शुरू होगा (Instant Client-Side Processing)
When you need to use this tool • आपको इस टूल की ज़रूरत कब होती है
- SSC CGL, CHSL, MTS signature upload requiring 10 KB to 20 KB
- IBPS PO, Clerk, and RRB recruitment requiring 10 KB to 20 KB
- SBI PO & Clerk application forms rejecting signatures under 10 KB
- Railway RRB forms requiring signature size between 30 KB and 70 KB
How to use this tool in 3 simple steps • 3 आसान स्टेप्स में फोटो साइज बढ़ाएं
- 1Upload • अपलोड
Upload your signature crop
Upload your cropped signature (JPG or PNG) signed on white paper in blue or black ink.
- 2Target KB • साइज चुनें
Choose signature preset
Select 20 KB (standard for SSC and Banking) or 50 KB (standard for Railway RRB).
- 3Download • डाउनलोड
Download and submit
Download the expanded signature file and upload it to your exam form.
Why signature files are tiny and how to avoid portal rejection
A scanned signature consists almost entirely of solid white background pixels, with only a tiny percentage occupied by dark ink strokes. Compression algorithms (both JPEG and PNG) compress large uniform white areas with extreme efficiency, resulting in files weighing as little as 4 KB to 8 KB. When you upload this file to SSC or IBPS portals, the server-side validator inspects the byte length and triggers an automatic rejection: "Signature file size must be between 10 KB and 20 KB". Adding metadata padding gives the file the exact required byte weight without changing ink darkness or line thickness.
Common problems and verified fixes • आम गलतियाँ और उनके समाधान
Frequently asked questions
Upload your cropped signature into the tool, ensure the target is set to 20 KB, and click "Increase File Size". You can download the expanded file in seconds.