Resize an image to 30 KB
Thirty kilobytes is a tight but workable limit for a photograph. A phone picture is commonly three to five megabytes, so reaching 30 KB means discarding well over 99 percent of the file. How you spend what is left decides whether the result looks acceptable or unusable, and the single thing that makes the difference is cropping before you resize.
No images yet. Add a photo and set the size you need.
Crop first, then resize
A compressor has a fixed budget of bytes and spreads it across every pixel you give it. Hand it a photo where the person occupies a quarter of the frame and three quarters of your 30 KB goes on a wall, a curtain and a floor. Crop to just the head and shoulders and the same 30 KB covers only the face, which is the part anyone looking at the form cares about.
This matters more at 30 KB than at any larger size. At 200 KB there is enough room that cropping is optional. At 30 KB it is the difference between a recognisable face and a smudge.
Practical order of operations
- Crop the photo to head and shoulders in your phone’s photo editor.
- Straighten it if the camera was tilted.
- Bring that cropped file here and resize it to 30 KB.
- Look at the face at full size before you upload. If it is unclear, crop tighter and try again.
If it still will not pass
- Check whether the form also states a minimum size or exact pixel dimensions.
- Check whether it accepts JPG only. This tool outputs JPG, which is the safest choice.
- Photograph against a plain light wall. Busy backgrounds cost bytes and add nothing.
- Avoid shadows across the face. Compression handles flat, even lighting far better.
Steps
- Crop your photo to head and shoulders first, if you have not already.
- Choose the cropped file. The limit here is already set to 30 KB.
- Check the size and look closely at the face.
- Press Download and upload it to your form.
Questions
Why does cropping make the picture clearer at the same file size?
The file size is a fixed budget shared across the whole image. Remove the background and that budget is spent entirely on the face, so the face holds more detail.
Will 30 KB be enough for a document or ID card scan?
No. Printed text needs far more detail than a face does, and it stops being readable well before 30 KB. For a document, try 100 KB or more.
Does the tool change my original photo?
No. It creates a new file and leaves the original untouched, so you can crop differently and try again.