It depends what is meant by italic, bold and bold italic.
One can make an italic font that is really just a “leaning over to the right” version of the original font fairly straightforwardly using the professional version of FontCreator. A true italic, however, needs both the leaning and a redesign of some glyphs as well.
However, I found, when I tried it some time ago, that getting started by producing an italic that is a “leaning over to the right” version of the original font was fun and educational and also produced a font that was useful.
Later I produced a bold and a bold italic.
whiteboard_venetian_four_fonts_test.pdf
The following thread may be useful, in particular the sixth and seventh posts in the thread.
The Whiteboard Venetian font was made using FontCreator using artwork produced using an experimental web application, and, whilst I hope that that might possibly be interesting reading for some readers for another time, the way that the ordinary Whiteboard Venetian font was produced is not the reason for my mentioning the Whiteboard Venetian font here.
The reason for mentioning the Whiteboard Venetian font here is that I made italic, bold and bold italic versions of the font using FontCreator to process copies of the ordinary Whiteboard Venetian font.
The following threads may also be useful.
I hope that this helps.
William Overington
30 April 2010
Please know that the edit was only to correct a spelling error that spell checking did not mention.