Fictional upload form

This demonstration contains no real account or personal data.

Logo upload

Accepted: JPEG or PNG. Maximum: 500,000 bytes. Minimum width: 1,200 pixels.

Selected file: mock-logo.png (620,000 bytes, 1,200 × 900 pixels)

Upload rejected: file exceeds the 500,000-byte limit.

A useful support message: The form rejected this PNG after I selected Upload.