Why does this PDF not appear properly in iOS?

by Tim   Last Updated May 15, 2018 20:12 PM

This PDF uses the embedded fonts Graphik-Regular and Graphik-Medium. When viewed in various readers on OS X, Windows, Android, Acrobat, the font appears correctly. When viewed in iOS, the Graphik fonts appear as a Helvetica variant. Is this a problem with iOS, or a problem with the PDF? The PDF was created using the open source library libHaru.

Here are the document font properties as seen in Acrobat

enter image description here

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