Compress Image to Exact KB
Snap a signature or photo to match strict government portal upload limits.
Drop an image or signature here
KB
Original: 0 KB
→
Compressed: 0 KB
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How Binary Search Exact Compression Works
Standard photo resizers simply reduce resolution or ask you to guess quality percentages until you get below a file limit. QuickDocHub implements a binary-search iterative quantization algorithm directly in browser memory. It performs multiple test encodings in milliseconds, narrowing down the mathematical compression coefficient until your image matches your requested byte boundary without unnecessary loss of clarity.
Common Application Form Limits
- Signatures for Government Portals: Usually requires under 10 KB or 20 KB.
- Passport & Admission Photos: Most online universities, civil service tests, and embassy portals cap files at exactly 50 KB or 100 KB.