http://www.perlmonks.org?node_id=1062063


in reply to PDF::API2 - Test text that will fit in area

Look at the advancewidth() method in PDF::API2::Content for the width of the text you want to write given the current text object's state, and, for height, I personally just used the rule of thumb that 0.6 x font size (in points) will give me a good-enough approximate height of the text I'm about to write.

Hope that helps.