[Poppler-bugs] [Bug 45659] Fails to display text of some documents

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=45659

--- Comment #7 from Adrian Johnson <ajohnson at redneon.com> 2012-02-13 01:04:26 PST ---
I can reproduce the problem by putting that font in ~/.fonts. It turns out that fc-match is not the best way finding the substitution font. For example:

> fc-match Arial
LiberationSans-Regular.ttf: "Liberation Sans" "Regular"

But pdfonts in git master has a new option to show the substitution font. Using this feature shows a different font:

> pdffonts -subst bug45659.pdf 
name                                 object ID substitute font                      substitute font file
------------------------------------ --------- ------------------------------------ ------------------------------------
Arial                                     5  0 Helvetica Fractions                  /home/ajohnson/.fonts/hvfr____.PFB
Arial,Bold                                7  0 Helvetica Fractions                  /home/ajohnson/.fonts/hvfr____.PFB
Times New Roman                          24  0 Nimbus Roman No9 L                   /usr/share/fonts/type1/gsfonts/n021003l.pfb

Looking at the hvfr font in fontforge shows that the only glyphs it contains are fractions. This explains why the text is not displayed.

I also tested with the xpdf303merge branch and the was text correctly displayed. According to pdffonts the Liberation Sans font was substituted:

> pdffonts -subst Ablauf_20111221.pdf 
name                                 object ID substitute font                      substitute font file
------------------------------------ --------- ------------------------------------ ------------------------------------
Arial                                     5  0 Liberation Sans                      /usr/share/fonts/truetype/ttf-liberation/LiberationSans-Regular.ttf
Arial,Bold                                7  0 Liberation Sans Bold                 /usr/share/fonts/truetype/ttf-liberation/LiberationSans-Bold.ttf
Times New Roman                          24  0 Liberation Serif                     /usr/share/fonts/truetype/ttf-liberation/LiberationSerif-Regular.ttf


I'm not sure what changed in xpdf303merge to change the font substitution but it looks like this bug will be fixed when xpdf303merge is merged to master.

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