Free Pro Image Resizer & Exact KB Compressor | WhyTomic
Free Pro Image Resizer & Exact KB Compressor
Drag & Drop Images Here
Upload single or multiple photos | Or press Ctrl+V to paste directly
Upload Single or Bulk
Import any photo, signature, document, or social graphic. 100% private inside your browser.
Custom Size or Official Preset
Enter any custom Width & Height (px, cm, mm, in) or pick from 30+ Exam, ID, Visa & Social presets.
Exact KB & Instant Download
Hit your exact target KB with custom DPI headers and download right below the Apply button.
Processing High-Clarity Images...
Applying dimensions, binary DPI header, and Exact KB target locally
Pro Tip: "Hit Exact KB" automatically compresses large photos or boosts small signatures to land right at 95%-99% of your entered KB limit!
Official Photo, Signature & Visa Size Chart (India & Global)
Quick reference chart for all major competitive exams, state portals, PAN cards, passport, and international visa photo specifications.
| Exam / Portal / Visa | Photo Dimensions | Photo KB Limit | Signature / Other Dimensions | Signature KB & DPI |
|---|---|---|---|---|
| UPSC (CSE, IAS, NDA, CDS, CAPF) | 350 x 350 px (up to 1000 x 1000 px) | 20 KB - 300 KB (JPG) | 350 x 150 px (350-500 px wide) | 20 KB - 100 KB | 300 DPI |
| SSC (CGL, CHSL, MTS, CPO, GD) | 3.5 cm x 4.5 cm (413 x 531 px) | 20 KB - 50 KB (JPG) | 4.0 x 2.0 cm (CGL) / 6.0 x 2.0 cm (CHSL) | 10 KB - 20 KB | 300 DPI |
| IBPS, SBI PO/Clerk, RBI, NABARD | 200 x 230 px (4.5 x 3.5 cm) | 20 KB - 50 KB (JPG) | Sign: 140x60 px | Thumb: 240x240 px | Decl: 800x400 px | Sign: 10-20 KB | Decl: 50-100 KB (200 DPI) |
| RRB Railway (NTPC, Group D, ALP, JE) | 35 mm x 45 mm (3.5 x 4.5 cm) | 30 KB - 70 KB (or 20-50 KB) | 50 mm x 20 mm (140 x 60 px) | 10 KB - 49 KB | 300 DPI |
| NTA Exams (NEET UG, JEE Main, CUET) | Passport: 3.5x4.5 cm | Postcard: 4x6 inch | 10 KB - 200 KB (JPG) | Signature: 4.0 x 1.5 cm | 4 KB - 30 KB (or 10-50 KB) |
| State PSCs (UPPSC, BPSC, MPSC, KPSC, TNPSC, HPPSC, JKSSB) | 3.5 cm x 4.5 cm (200 x 230 px) | 20 KB - 50 KB (JPG) | 3.5 cm x 1.5 cm (140 x 60 px) | 10 KB - 30 KB | 200/300 DPI |
| PAN Card (NSDL / Protean & UTIITSL) | NSDL: 2.5x3.5 cm | UTI: 213x213 px | NSDL: Under 50 KB | UTI: Under 30 KB | NSDL: 4.5x2.0 cm | UTI: 400x200 px | NSDL: 200 DPI | UTI: 300/600 DPI |
| US Visa (DS-160), OCI, UK & Schengen Visa | US/OCI: 2x2 inch (600x600 px) | UK/EU: 35x45 mm | US Visa: Under 240 KB | Schengen: Under 100 KB | Digital Biometric Square / Rectangle | 300 DPI | Plain White BG |
Frequently Asked Questions
How to resize photo and signature for UPSC, SSC CGL, IBPS, SBI PO, and RRB Railway exams?
Upload your photo or signature and choose your exact exam from the "Select Preset" dropdown in Section 1. Whether you need a 350x350 px photo for UPSC, 3.5x4.5 cm (20-50 KB) for SSC CGL/CHSL, 200x230 px photo and 140x60 px signature (10-20 KB) for IBPS/SBI PO, or 35x45 mm for RRB Railway, the tool automatically sets the unit, dimensions, DPI, and target KB. You can also enter any custom dimensions manually. Click Apply and download your file right below the button.
How to resize passport and 4x6 postcard photos for NEET UG, JEE Main, CUET, and State PSCs (UPPSC, BPSC, MPSC, KPSC, TNPSC, HPPSC, JKSSB)?
For NTA NEET UG, JEE Main, and CUET, select either the "NEET/JEE Passport Photo (3.5x4.5 cm)" or "NEET Postcard Photo (4x6 inch)" preset to generate a compliant JPG between 10 KB and 200 KB. You can also check "Print Name & Date Strip on Photo" to add your name and photo date at the bottom. For State PSC portals like UPPSC, BPSC, MPSC, RPSC, KPSC, TNPSC, WBPSC, HPPSC, and JKSSB, select the State PSC preset to get exact 200x230 px or 3.5x4.5 cm dimensions under 50 KB.
How to set 200 DPI, 300 DPI, or 600 DPI for NSDL and UTIITSL PAN Card photo and signature?
NSDL (Protean) requires a 3.5x2.5 cm photo and 2.0x4.5 cm signature at 200 DPI under 50 KB, whereas UTIITSL requires a 213x213 px photo (300 DPI, under 30 KB) and a 400x200 px signature (600 DPI, under 60 KB). Select the respective NSDL or UTIITSL PAN preset from our dropdown—our binary engine writes the exact 200, 300, or 600 DPI resolution marker directly into the JPEG JFIF header.
Can I create a 2x2 inch (600x600 px) US Visa DS-160 photo or 35x45 mm Schengen/UK Visa photo under 240 KB?
Yes! Select "US Visa DS-160 / OCI Square (2x2 inch / 600x600 px | 180 KB)" for a 1:1 square biometric photo safely under the 240 KB CEAC portal limit, or choose "Schengen / UK / Canada Visa (35x45 mm)" for European and UK visa portals. Use the Zoom and Slide bar to center your head properly before clicking Apply.
How does the "Hit Exact KB" booster prevent small signatures (like 10KB-20KB) from getting rejected?
When you crop a signature to small dimensions like 140x60 pixels, normal tools output a 3 KB or 4 KB file that gets rejected by portals requiring "minimum 10 KB to 20 KB". When you enter "18" in the Target File Size (KB) box with "Hit Exact KB" selected, our engine keeps 100% visual clarity and embeds clean, standard-compliant JPEG metadata segments so your file lands at ~17.6 KB every single time.