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Topic: Re: Weird rendering of text using Type1font
Conf: (P-PDF) Developers, Msg: 58771
From: teryk
Date: 5/29/2002 05:34 PM

In general it is dangerous to modify the widths array of a non-embedded and
subsetted Type1 font in PDF, especially one of the base14.


1. What version of Acrobat are you testing in?
2. If you turn page caching off in the preferences does the problem go away?
3. When you print to a PostScript printer with that font installed, do the
characters overlap?

My guess is that the answer to 2 and 3 is true and is the result of Acrobat
using the default widths array in some situations rather than your modified
widths. For consistency across viewer releases and situations, I would
suggest using a fixed width font (courier) and the Tc operator to get the
same effect without having to modify the widths array.


I generate PDF on the fly and use one of 14 Based fonts
for Type 1 font with modified width table. First time page looks OK by when
I scroll the text up/down several times suddenly letters start to overlap.
Looks like Acrobat messes something in memory.

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