Myriad Pro Italic Corruption

[mrJoJo]

When I pre-flighted a customers PDF containing a correctly embedded font (Myriad Pro Italic) the letters fl became corrupt (replacing with a square). This job was printed and the customer is asking why this happened, could it be a bug with the font?

[dkelly]

'fl' was probably a ligature and either the font was encoded or subset incorrectly.

[bens]

dkelly is correct, and you can probably avoid this problem in the future by using the check with the impossibly long name "Check if font contains all glyphs and metrics for all characters used". You may need to use an Action List for this - I didn't immediately find it in the Preflight Profile editor (but I may have overlooked it).