How to compress an image to 20KB
- Click Choose images (or drop files). The target is already set to 20 KB.
- The tool picks the highest quality that fits under 20 KB and shows the final size.
- Press Download. Need another limit? Type it in the target box.
When you need an image under 20KB
- Scanned signatures for exam, admission and job application portals
- Small passport-style photos where the form allows only a few kilobytes
- Thumbnails and avatars for older systems with tight upload limits
Tips for the best quality at 20KB
- Crop to just the face or the signature before compressing: fewer pixels means more quality at 20 KB.
- For signatures, use a white background and dark ink; plain areas compress very well.
- If the portal also gives pixel dimensions (for example 200 × 230), set the max width to match, then compress.
Other sizes
Compress image to 50KB · Compress image to 100KB · Image compressor with custom quality