How to use Compress Image to 100 KB
- Add the photo or scanned document you need to upload.
- The target is already set to 100 KB. JPG suits photos and scans.
- Click "Compress to 100 KB". Most images only need a lower quality setting, not a smaller size.
- Download the result and upload it to your form.
Why use Compress Image to 100 KB
Room for detail
At 100 KB a scanned ID card or certificate usually stays readable.
Under 100,000 bytes
Passes forms that count a kilobyte as 1,000 or 1,024 bytes.
Several files at once
Compress the front and back of an ID card, or a set of documents, together.
Private
Scans of IDs and certificates stay on your device.
About this tool
100 KB is a common upper limit for scanned documents and photos on visa, residency, university and government portals. It is enough to keep a scanned ID card or certificate readable, as long as the image is not far bigger than the portal needs.
For documents, photograph the page straight on in good light and crop away the background. Text on a clean, white page stays readable at small file sizes far better than a tilted photo with shadows.
Frequently asked questions
Will text on my scan stay readable?
Usually, at 100 KB, especially if you crop to the page. If it looks soft, crop tighter before compressing.
Should I use JPG or PNG for a document?
JPG. PNG files of scanned documents are much larger and rarely fit under 100 KB.
Is 100 KB the same as 100,000 bytes?
Forms differ. The tool keeps files under 100,000 bytes so they pass either way.
Can I compress several files at once?
Yes. Add them all and download them together as a ZIP.
Is anything uploaded?
No. The compression happens in your browser.