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Aadhaar June 4, 2026 6 min read

How to Compress Image to 150KB Online (Aadhaar & KYC)

Aadhaar front and back scans often must stay under 150KB while remaining sharp enough for OCR and manual verification.

Uploading a full-resolution phone photo of your Aadhaar card can produce 2–5MB files. Portals reject them instantly. The fix is not extreme compression — it is correct dimensions first, then KB reduction.

Official scan dimensions

OptiKit's Aadhaar resizer crops to 800×500 px (8:5 ratio) and compresses each side under 150KB with 300 DPI metadata. If you only need KB reduction on an already-cropped JPG, use the 150KB compressor.

Step-by-step

  1. Photograph or scan the card flat, even lighting, no glare on the QR code.
  2. Crop front and back separately — do not upload one tall image of both sides.
  3. Export JPG (not PNG) for government portals.
  4. Compress to under 150KB and verify the UID number is readable at 100% zoom.