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<HTML>
<HEAD>
<!-- Created with AOLpress/2.0 -->
<!-- AP: Created on: 9-Mar-2002 -->
<!-- AP: Last modified: 10-Mar-2002 -->
<TITLE>sfddiff -- A program for comparing fonts</TITLE>
</HEAD>
<BODY>
<H1 ALIGN=Center>
sfddiff<BR>
<SMALL>A program for comparing fonts</SMALL>
</H1>
<P>
<CODE>sfddiff [-merge outfile] [-ignorehints] [-version] [-help] sfdfile1
sfdfile2</CODE>
<P>
<EM>Sfddiff</EM> compares (or merges) two of
<A HREF="overview.html">pfaedit</A>'s sfd files and checks for differences.
<P>
It will notice:
<OL>
<LI>
if the two fonts have different encodings
<LI>
any characters present in one font but not in the other
<LI>
any characters present in both fonts but which have different sets of outlines
or references.
<LI>
optionally will check if the hints are different.
</OL>
<P>
If the <CODE>-merge</CODE> flag is specified the following argument should
be the name of an output file into which sfddiff will store a merged version
of the two fonts. This will contain everything from sfdfile1 as well as any
characters present in sfdfile2 but not in sfdfile1. For any characters with
different outlines or references, the background of the the character will
contain the splines from sfdfile2 (sadly references can not be placed in
the background).
<P>
If the <CODE>-ignorehints</CODE> flag is specified, then no hint differences
will be reported.
<P>
<CODE>-help</CODE> will provide a mini description and will list the available
options.
<P>
<CODE>-usage</CODE> will list the available options.
<P>
<CODE>-version</CODE> will display the current version of <EM>sfddiff</EM>
(a six digit string containing the date stamp of the source files).
<H3>
Bugs
</H3>
<P>
Doesn't work on CID keyed fonts yet.
<H3>
See Also
</H3>
<P>
<A HREF="overview.html">PfaEdit</A>
</BODY></HTML>
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