Compress Image to 30KB
Bring a photo down to 30 KB - a little more headroom than 20 KB, still small enough for strict forms.
The Middle Ground Between Signature and Photo Limits
30 KB sits in a useful gap. It is generous enough that a small headshot keeps recognisable detail, and tight enough to satisfy forms that treat anything above 50 KB as too big. If a portal gives you a range rather than a hard number - "between 10 KB and 50 KB" is common - 30 KB is a safe middle to aim for, because it clears the minimum without brushing against the maximum. Set the target, check the preview, and download; if the result looks soft, nudge the target up rather than accepting a blurry upload.
How to Compress an Image
Upload your image
Pick a JPG, PNG, WebP, or GIF file from your device. It stays on your computer - nothing is sent to a server.
Set a target size or quality
Type the exact KB size a form or upload limit requires, tap one of the presets, or switch to the quality slider for manual control.
Download the compressed file
Check the before and after sizes, then save the smaller image in JPG, PNG, or WebP.
When 30 KB Is the Right Target
- Forms that specify a 10-50 KB range for photos or signatures
- Small profile pictures on membership and alumni portals
- Document thumbnails attached to an application record
- Compressing a scanned ID photo before emailing it
- Product thumbnails on a listing page that must load fast
- Any upload where 20 KB looks too rough but 50 KB is refused
Compressing to 30 KB
How much quality do I lose at 30 KB?
That depends on the pixel dimensions. A 300 × 300 photo at 30 KB looks fine; a 3000 × 2000 photo at 30 KB will not. Resize first if your image is large and detail matters.
My form says 10 KB to 50 KB - what should I pick?
Aim near the top of the range for the best quality that still passes. 30 KB is a safe middle, and 45 KB is usually accepted if the maximum is 50 KB.
Can I go back if 30 KB is too small?
Yes. Change the target number and the result updates immediately - nothing is committed until you download.
Does compressing twice make it smaller?
No, and it will look worse. Always compress the original file rather than a file you already compressed.
Related tools
Compress Image to 20KB
Get any photo under 20 KB - the standard cap for signature uploads on exam and job portals.
Compress Image to 50KB
Reduce a photo to 50 KB or less - the most common cap for passport-style photos on application forms.
Reduce Image Size in KB
Type the exact number of kilobytes you need and get a file that fits - any image, any target.