Ubuntu Font Licence 1.0: what you can do with these fonts

Your work is yours, as long as it is not a way to hand out the font.

"The requirement for fonts to remain under this licence does not require any document created using the fonts or their derivatives to be published under this licence, as long as the primary purpose of the document is not to be a vehicle for the distribution of the fonts."

That is about the font's own names; a logo you set in it is not restricted.

"This licence does not grant any rights under trademark law and all such rights are reserved."

The notice and licence go with every copy of the file.

"Each copy of the Font Software must contain the above copyright notice and this licence."

Bundle it with its notice and licence.

"Each copy of the Font Software must contain the above copyright notice and this licence."

Small changes add "derivative X" to the name (2(c)); big changes take a new name.

"Modified Versions which are Substantially Changed must be renamed to avoid use of the name of the Original Version or similar names entirely."

Share it under the UFL only.

"The Font Software, modified or unmodified, in part or in whole, must be distributed entirely under this licence, and must not be distributed under any other licence."

Charging a fee is part of what the licence permits; the notice and licence still go with it.

"Propagation includes copying, distribution (with or without modification and with or without charging a redistribution fee), making available to the public"

No credit is asked for in your document.

"The requirement for fonts to remain under this licence does not require any document created using the fonts or their derivatives to be published under this licence"