Resize Image to 19 KB
Aiming for 19 KB gives you a safe margin under a 20 KB limit, since some portals count kilobytes differently. This page compresses your file under 19 KB. Everything runs in your browser — nothing is uploaded. Need different dimensions instead? Resize or convert.
Why compress to 19 KB?
19 KB is a common upload limit for signatures, thumbnails and the small photo fields on online application forms. At that size a JPG photo can be about 340×250 pixels at medium quality.
About 340×250 px fits
At medium quality a detailed JPG photo of roughly 340×250 pixels lands under 19 KB; at high quality about 240×180.
Typical use
19 KB limits are common for signatures, thumbnails and the small photo fields on online application forms.
189× smaller than a phone photo
A 12 MP phone photo is around 3–4 MB, so it must shrink about 189×. The tool lowers quality first and resizes only if needed.
Quality to expect
At 19 KB, quality is basic. Best for small ID photos and signatures.
Scans and documents
A scanned A4 page of about 410×580 pixels usually fits, because text pages compress far better than photos.
Exact limit, checked
19 KB is measured as 19,456 bytes (1 KB = 1,024 bytes), the way most upload forms count it, so the file is never just over.
19 KB at a glance
| Limit in bytes | 19,456 bytes |
|---|---|
| Photo at high quality | about 240×180 px |
| Photo at medium quality | about 340×250 px |
| Photo at low quality | about 460×340 px |
| Scanned A4 document | about 410×580 px |
| Reduction from a 12 MP phone photo | about 189× |
| Output format | JPG (best for photos), WebP or PNG |
| Typical use | Signatures, thumbnails and the small photo fields on online application forms |
Compress an image to 19 KB in 3 steps
- Add your image — JPG, PNG, WebP or a phone photo.
- The target is already set to 19 KB. Leave “Remove EXIF metadata” ticked to save extra bytes.
- Click Compress and download a JPG under 19 KB.
New to image compression? Read the full compression guide.
Why aim a little under 20 KB
KB is not always 1024 bytes. Some websites count 1 KB as 1000 bytes, others as 1024. A file that your computer shows as 20 KB can be rejected as “too large”. Targeting 19 KB avoids that.
Good for photos and signatures. 19 KB holds a clear passport-size photo around 200–250 pixels wide, or a detailed signature.
Ranges. If the form needs 10–20 KB, 19 KB clears both ends with room to spare.
Nearby sizes
Other limits and sizes people often need:
Compress by format
Guides and presets for each format:
Compress under a file size
Keeps your image’s format — pick the limit you need:
JPEG under a file size
Frequently asked questions
Why did my 20 KB file get rejected?
The site may count 1 KB as 1000 bytes. A file just under 20 KB on your computer can be over 20,000 bytes. Aim for 19 KB.
How many pixels fit in 19 KB?
For a detailed JPG photo, about 340×250 at medium quality or 460×340 at low quality. Simple graphics and scans can be much larger.
What quality will a 19 KB photo have?
Basic. Best for small ID photos and signatures. The tool keeps the dimensions where it can and lowers compression quality first, so faces and text stay readable.
Is 19 KB the same as 19,000 bytes?
Not quite. Most forms count 1 KB as 1,024 bytes, so 19 KB is 19,456 bytes. The tool uses the same count, so a file it marks as under 19 KB is accepted.
Should I use JPG or WebP for 19 KB?
JPG is accepted everywhere and is the safe choice for forms. WebP holds about 30% more detail at the same size, ideal for websites that support it.
Why is my file still over 19 KB?
Very large or detailed images may not reach 19 KB by quality alone. Resize it first (for example to 340 pixels wide) with the resizer, then compress again.
Are my images uploaded anywhere?
No. They are read and compressed by your own browser and never leave your device. You can disconnect from the internet once the page has loaded and it will still work.