When you output styled text via MBS Plugins and DynaPDF, we convert the styled text for you in commands for DynaPDF. For this conversion we recently added a leading factor to define the line spacing based on the font size. You can still define leading (distance between two base lines) in points if you like, but the relative measure to font size is probably better for a lot of cases. Of course only makes an effect if font size changes within a text.
For FileMaker we added LeadingFactor parameter to DynaPDF.ConvertStyledText, DynaPDF.WriteStyledText and DynaPDF.WriteStyledTextEx functions.
For Xojo we added LeadingFactor parameter for WriteStyledText, WriteStyledTextEx and ConvertStyledText methods in DynaPDFMBS class. The default value for the new parameter is -1, which allows us to detect whether you use the parameter.
For all the functions, please pass nothing (omit parameter) or zero for automatic behavior like it used to be: Leading being the font size. You can pass a factor like 1.2 or 1.5 to increase line spacing as needed.
Available in current pre-release. Please don't hesitate to contact us with your questions.