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Resize Image to 30KB
30 KB sits between the tight signature limits and the looser photo limits, and it is a common cap on forms that take a passport-style photo or a small scan. This preset writes a JPG and keeps the photo as large as 30 KB allows.
- Runs on your device
Drop images here
or browse · one image on Free
Supports JPG, PNG, WebP, GIF, BMP, AVIF
Target size picks the quality for you and never goes over the limit you set.
The result is never larger than this. If a size cannot be reached by quality alone, the image is scaled down to fit.
Free compresses one image at a time.
Free exports up to 4096px on the longest side
Why 30 KB is a comfortable photo size
Three times the budget of a 10 KB cap buys a lot. A head-and-shoulders photo can stay around 300–400 pixels wide with clean skin tones, and a small ID-card scan stays readable. It is still roughly a hundredth of a phone photo, so most images are reduced in pixels as well as quality; the tool shows the final dimensions so you can check them against any pixel size your form also asks for.
Getting under 30 KB
- Read your form's instructions for both a size in KB and any pixel dimensions — if it names dimensions, the photo and signature resizer sets both at once.
- Drop the image here. The target is already 30 KB and the output is JPG.
- Download and check the size before you submit.
What 30 KB keeps
- Faces keep natural detail when the photo is cropped to head and shoulders.
- A card or certificate scan stays legible if you crop off the table around it and keep it upright.
- Busy backgrounds eat the budget; a plain wall behind the subject leaves more bytes for the face.
Where a 30 KB limit usually appears
- Passport-style photos on application and registration forms, which often give a range such as 20–50 KB.
- Small scans of an ID card or a signed declaration on portals with tight per-file caps.
- Profile photos on older job, school and membership portals.
- Ranges vary between forms, so check the number in your own form's notice.
Why this page writes JPG
JPG is the type these forms list most often and the one every upload checker can open. At 30 KB it holds a clean head-and-shoulders photo; WebP would squeeze out a little more detail, but a form that does not accept WebP rejects the file outright.
How the 30 KB preset works
- Target: 30 KB, counted as 30,720 bytes; the output never exceeds it.
- Quality is used first and pixels are reduced only when needed, so a small source can come back at full size.
- If your form gives a range such as 20–50 KB, a 30 KB file sits safely inside it.
Try other KB presets
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- Image Converter
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- Resize Images to Exact Dimensions
- Photo & signature resizer
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FAQ
Is 30 KB enough for a passport-size photo on a form?
For an on-screen check, yes. A head-and-shoulders JPG around 300–400 pixels wide fits comfortably in 30 KB, which is more than most application forms display. It is not enough to print from, so keep your original.
My form asks for 20–50 KB — should I use this page?
Yes. 30 KB leaves a margin on both sides of that range. If the form also names exact pixel dimensions, use the photo and signature resizer, which crops to those dimensions and then fits the file into the size range.
Why did my image come out smaller in pixels?
Because quality alone could not get it under 30 KB. The tool lowers quality first and reduces the dimensions only when it has to, then shows the final width and height. Cropping tighter keeps more of the subject at full detail.
Why JPG and not PNG?
PNG is lossless, which makes photographs many times larger — a photo PNG under 30 KB would have to be tiny. JPG is built for photographs and is what these forms accept.
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