Variable font: Italic character wrongly displayed when exported to PDF format from InDesign.
I'm reporting this bug on behalf of the type design studio Dalton Maag. To reproduce: use the provided test font, write the lowercase letter "p" in Indesign, and choose the "Hair Italic" instance, or equivalently, set:
- the font's weight axis to the minimum,
- the width to its default value
- the italic axis to its maximum.
Glyphs are shown without fault within InDesign itself. However, when exported to PDF format and opened on Acrobat Reader, there is an issue with how the letter “p” is displayed (see aktiv_vf_p_bug.png).
We are suspecting the issue is caused by a point on the glyph with coordinate x=0. For our purpose of releasing a working version of the font, we were able to circumvent this problem by moving the offending point by one pixel to the right in the Hair Italic master. However, this is not an acceptable longterm solution from a design standpoint.
We also suspect that the problem happens during the conversion from variable font to a static font for inclusion in the PDF, because we extracted from the PDF the static Hair Italic font that gets embedded, and saw that the bottom right point is misplaced in that font.
I can't attach the pdf but I can send it to you for reproducibility.
The fix for this issue is now available in the latest update of InDesign – version 16.1
Please update to this version to get the fix.
Adobe InDesign team