How do you hit exactly 20KB without blurring?
Our engine runs an iterative binary search on the JPEG/WebP quality factor and only scales down excess pixel dimensions if the original image is ultra-high resolution (e.g., 4000x3000px).
Compress Image to 20KB
Automatically lock your photo or signature file size to 20KB or less.
How to Reduce Photo & Signature to 20KB
Upload your scanned signature or passport photo. The target slider is pre-locked to 20KB. Our binary-search algorithm automatically finds the highest visual quality that fits strictly under 20,480 bytes.
Ideal for Exam Forms & Official Portals
Government recruitment portals (SSC, UPSC, IBPS, state civil services) strictly reject signatures and thumb impressions exceeding 20KB.
Preserving Legibility at Low Byte Sizes
When targeting 20KB, our engine prioritizes contrast and edge clarity so handwritten signatures and facial features remain sharp.
Frequently Asked Questions
What dimensions are best for signature uploads under 20KB?
Most portals recommend 140x60 pixels or 200x80 pixels for signatures, which easily stays crisp between 10KB and 20KB.
Which formats are supported for 20KB compression?
You can upload PNG, WebP, or JPG files, and the tool will output a universally accepted JPG or WebP under 20KB.