What fits in 100 KB
100 KB is enough for a detailed passport-style photo of about 413 × 531 pixels (3.5 × 4.5 cm at 300 DPI) or a readable scan of a short handwritten note at 800 × 400 pixels.
Scans of handwriting
For a signature or handwritten declaration, tick Clean scan. It turns the paper white and the ink dark, which makes the writing easier to read and the file smaller.
Why uploads get rejected
- The file is a few KB over or under the allowed range.
- The file is PNG, HEIC or PDF when the form accepts only JPG.
- The face is too small, off-centre or in shadow, or the background is not plain and light.
- The signature is in capital letters, faint, or signed by someone else.
- A screenshot or a photo forwarded through a chat app was used, which lowers quality.
Questions and answers
Will the picture look worse after compression?
Slightly, but at these sizes the difference is hard to see. The tool always uses the highest quality that still fits your limit.
Can I resize a PDF?
No. This tool works with pictures. Take a photo or screenshot of the page and resize that.