Signature upload spec
- JPEG
- Usually 10–20 KB
- Often a wide strip (e.g. 140×60 px)
The target is preset to 20 KB. If your portal demands 10 KB, just type 10 — the tool will reach it, downscaling a little if needed.
Keep the strokes legible
Signatures go blocky fast under heavy compression. PhotoFit finds the highest quality that still fits your KB limit, so the strokes stay clean and the upload is accepted on the first try.
Need a photo too?
Most of these forms also need a photo at under 50 KB or 100 KB. Those are one click away.