[pdftex] Characters missing when printing from Acrobat

na199 at worldonline.de na199 at worldonline.de
Wed Dec 5 18:47:49 CET 2001

in my guess the opinion below might just mention  the possible cause: In 
Windows you should not use the first 16 places (decimal 00 to 15); these 
places are normally commands for Windows like 
00 could be a terminator for tabs
07 is the bell/beep/buzzer
12 is the form feed for a printer
13 is the carriage return
So PS-fonts for Windows (at least at older times) used to leave these 
places free.
In Unix there seem to be no such restriction.
As a result you might get the wrong character (here: none) if you work 
once with Unix, then put the ps-file on a windows-machine.

It might also be of some difference how the PS-font is constructed: are the 
characters called by explicite names or are they just numbers?

Would that explain the strange behaviour?

I would not regard it as a bug in Acrobat.

The mistake might not happen if you don´t use PS-fonts but just what 
metafont delivers. 

> On Wed, 5 Dec 2001, Carsten Friedrich wrote:
> > Hi,
> >
> > I use pdftex and WinEdt on a windows 98 machine. Because my pdf files
> > would not print from acrobat with partially embedded fonts I changed my
> > font map to include many fonts completely (changing < to <<). I tried not
> > to do this for standard fonts like courier and times. My document displays
> > fine when displayed using acrobat, but when printing, some characters are
> > missing.
> > They include the minus sign in mathematical formulas and greek letters in
> > mathematical formulas. Acrobat says my document uses the following fonts:
> >
> > original font, type, encoding, actual font, type
> >
> > Times-Bold, type1, custom, TimesNewRomanPS-BoldMT, Type1
> > Times-Roman, type 1, custom, TimesNewRomanPSMT, type 1
> > CM<something>, type 1, built-in, embedded, type1
> > Times-Italic, type 1, custom, TimesNewRomanPS-ItalicMT, type 1
> > Courier, type 1, custom, ,,
> >
> > CM<something> is short for a list of all kinds of CM fonts. Courier does not
> > seem to have an actual font.
> >
> > Any idea what the problem might be and how to fix it?
> >
> > Thanks,
> > Carsten
> I have seen this sort of problem a few years ago with AR 3.x and
> early versions of pdftex -- since TeX encode the math minus as
> ASCII NUL it often breaks early versions of software that attempt
> to use "standard" C null-terminated strings.  Glyphs encoded as
> ASCII control characters have also caused problems, which is why
> some systems reencode those glyphs, but I haven't seen the problem
> recently.
> What version of pdftex?  I have (on assorted unix systems and Win95):
> Version 3.14159-1.00a-pretest-20010806-2.1 (Web2C
> What version of Acrobat Reader are you using?  4.05 works well, I'm
> not sure of the status of the 5.x versions.  What happens when you
> display the file using the current gsview (which will nag you to
> purchase a license, but can be used without an up-front payment).
> If all this doesn't help, please put a small example with the TeX
> source and the pdf on a public server somewhere (preferably without
> pdf compression) so we can analyze the problem.
> -- 
> George N. White III <gnw3 at acm.org> Bedford Institute of Oceanography
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