Increase Image Size in KB Online
Fix "File Size Too Small" Portal Errors
Did your form give the error "File size must be greater than 20 KB"? Easily increase your image file size to 20 KB, 50 KB, or 100 KB without changing dimensions or losing visual quality.
Upload Photo, Signature, or Thumb Impression
Drag and drop image here, or tap to browse from phone/PC
Your resized preview will appear here with live file size stats.
Run a CSC Center, Cyber Cafe or Xerox Shop?
Processing 50+ applicant forms every day? DocuMate® Desktop Windows Software prints CR80 Aadhaar & PAN cards, generates 8/12/16 passport photos, and batch-resizes 100+ files in seconds 100% offline without internet.
Download Free DocuMate® Windows App →Compare Official Form Specifications (2026)
Direct dimensions, pixel limits, and KB requirements for top Indian government and entrance exam forms.
| Exam / Application Portal | Photo Dimensions & Size | Signature Dimensions & Size | Thumb / Marksheet Rules | Quick Preset |
|---|---|---|---|---|
| SSC CGL / CHSL / MTS / GD | 3.5 × 4.5 cm (200 × 230 px) 20 KB to 50 KB JPG |
4.0 × 2.0 cm (140 × 60 px) 10 KB to 20 KB JPG |
White background, without spectacles or cap | |
| UPSC Civil Services / OTR | 3.5 × 4.5 cm (min 350 × 350 px) 20 KB to 300 KB JPG |
min 350 × 350 px 20 KB to 100 KB JPG |
Face must cover 75% of photo; name & date at bottom | |
| NSDL & UTI PAN Card | 213 × 213 px (300 DPI) Under 50 KB JPG |
400 × 200 px (300/600 DPI) Under 50–60 KB JPG |
Aadhaar PDF / Proof documents under 300 KB | |
| NEET UG & JEE Main (NTA) | 3.5 × 4.5 cm (Passport & Postcard) 10 KB to 200 KB JPG |
3.5 × 1.5 cm 4 KB to 30 KB JPG |
Postcard size: 4"x6" (10-200 KB); Fingers/thumb 10-200 KB | |
| IBPS / SBI PO & Clerk | 200 × 230 px (4.5 × 3.5 cm) 20 KB to 50 KB JPG |
140 × 60 px (Black ink only) 10 KB to 20 KB JPG |
Left Thumb Impression: 240 × 240 px (10 KB to 20 KB) | |
| Sarathi Driving Licence | 35 × 45 mm (Passport photo) 10 KB to 20 KB JPG |
35 × 15 mm 10 KB to 20 KB JPG |
Medical cert & documents PDF under 200 KB | |
| MPSC & Police Bharti | 3.5 × 4.5 cm (160 × 212 px) 20 KB to 50 KB JPG |
256 × 64 px 10 KB to 20 KB JPG |
Caste certificate & Non-Creamy Layer PDF under 250 KB |
📐 CM to Pixel & DPI Calculator
Need to convert centimeter or millimeter requirements to pixel dimensions? Use our formula-accurate calculator:
Frequently Asked Questions
Answers to common questions about increase image size in kb and fixing upload validation errors.
Why does my form say 'File size is too small'?
Portals like UPSC and SSC have strict minimum thresholds (e.g. minimum 20 KB for UPSC photo). Heavily compressed files trigger this rejection.
How can I increase the KB of an image without software?
Upload your image, increase the quality slider to 95-100%, or select a higher target preset (such as 50 KB). Click Download, and the resulting file will safely exceed the minimum KB limit.