I can't figure out how to do that in inkscape.
(Italic is not available for my font.)
Graphic Design Stack Exchange is a question and answer site for Graphic Design professionals, students, and enthusiasts. It only takes a minute to sign up.Sign up to join this community
Have a look here:
Select the text using the Create and Edit text tool (F8).
Press Ctrl + I to italicise. If your font does not come with italics, this just skews the font as desired.