hit the quote button, then copy n paste into your sig. 1. Signature Limits: All signatures should not exceed the following size limits, and you can't have both text and images. Text Signatures: 4 lines normal size OR 8 lines small size and up to 90 chars per line. Font sizes above 2 are not allowed. For images in signatures: 1 image up to 300 pixels wide, 125 pixels tall and 20k in size.