Compress Image to Target KB (20KB, 50KB, 100KB)
Fast, lossless-quality in-browser compressor for photos, certificates, marksheets, and admit cards. Shrink any image to exact kilobyte limits required by government recruitment and admission portals.
Drop Document, Certificate or Photo Here
Supports JPG, PNG, WebP โข 100% In-Browser Private โข Instant Compression
๐ How Target KB Compression Works
Most online document portals enforce hard ceilings on file uploads: SSC (20 KB), IBPS (20โ50 KB), UPSC (20โ300 KB), and NTA/State PSCs (100โ300 KB). If your file is 1 KB over the limit, the server automatically rejects the upload.
SignResize's binary-search quantization engine evaluates iterative compression quality directly on your local device. It pinpoints the exact compression factor that yields the maximum visual clarity while ensuring the file size strictly remains below your specified KB threshold.
Frequently Asked Questions
How to compress an image to 20 KB or 50 KB online? โผ
Upload your photo or document into the SignResize Image Compressor. Select either the 20 KB or 50 KB preset button (or type your exact target KB in the custom input). The tool immediately performs iterative canvas compression to reduce the file size without pixelating text, and you can download your JPG/PNG instantly.
Will compressing my certificate or marksheet make the text unreadable? โผ
No. SignResize uses advanced high-frequency edge-preserving compression algorithms on your browser's HTML5 canvas. Even when compressing documents to 50 KB or 100 KB, text characters and roll numbers remain sharp and legible for exam portal scrutiny.
What image formats are supported for compression? โผ
You can upload JPG, JPEG, PNG, WebP, GIF, and standard smartphone camera photos. You can export the compressed output as standard JPEG (accepted by all government portals), WebP, or PNG.
Is it safe to compress government ID cards and sensitive certificates here? โผ
Yes, 100%. SignResize runs entirely on your device's client-side browser memory. Zero bytes are uploaded to external servers or cloud databases, guaranteeing absolute privacy for your Aadhaar card, PAN card, caste certificates, and marksheets.