[XeTeX] Windows views XeTeX PDF with bad font size

mskala at ansuz.sooke.bc.ca mskala at ansuz.sooke.bc.ca
Sat Feb 18 16:37:44 CET 2012

I'm sorry I don't have many details because it wasn't my own system on
which the problem appeared, but:  I have a PDF file generated with XeTeX
(xdvipdfm), and a Japanese font embedded in the PDF.  It looks fine on my
screen (under Linux, with a couple of different viewers) and it prints
correctly when I send it to my laser printer.  But when my friend tries to
view it on a Windows machine, he complains that "there's not enough space
between the characters" and from the screen shot it's apparent that the
viewer has scaled the font to a too-large size while still positioning
each glyph at its correct reference point.  As a result the glyphs touch
and overlap.

Most likely this is some problem with the Windows PDF viewer.  I've seen
similar things before though not as extreme as the current case - it may
have some standard sizes, and round things to the nearest standard size
even if that's a bad idea, as a result of trying to make pixel hinting
look nice.  But if there's anything I can change in the way I generate the
PDF file (or by editing the font) to make this issue less likely to occur
on Windows systems, it'd be valuable to know about.
Matthew Skala
mskala at ansuz.sooke.bc.ca                 People before principles.

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