NAME¶
sfddiff - compare two font files
SYNOPSIS¶
sfddiff [
--help] [
--ignorehints] [
--ignorenames]
[
--ignoregpos] [
--ignoregsub] [
--ignorebitmaps]
[
--exact] [
--warn] [
--merge outfile]
[
--usage] [
--version]
fontfile1 fontfile2
DESCRIPTION¶
The program
sfddiff compares two font files, which may be in any format
fontforge(1) can read. It will notice the following differences:
- 1)
- Characters are present in one font but not in the other.
- 2)
- Characters are present in both fonts but have different sets of outlines
or references. The outlines may be compared so that only exact matches are
accepted, or so that a fuzzier match is used. Similarly references may
need to match exactly, or may be matched after an unlink.
- This fuzzy comparison is useful when comparing truetype and postscript
fonts, or when comparing a font with references to one without.
- 3)
- The postscript hints or truetype instructions are different.
- 4)
- The font names (the truetype `name' table) differ.
- 5)
- The kerning (and other `gpos' information) differs.
- 6)
- The ligatures (and other `gsub' information) differ.
- 7)
- Any bitmap strikes present in one font but not in the other.
- 8)
- Any bitmap characters present in one strike of one font but in the
equivalent strike of the other.
- 9)
- Any bitmap characters which differ.
OPTIONS¶
- --help
- Provide a description with a list of the available options.
- --ignorehints
- Suppress the reporting of hint/instruction differences.
- --ignoregpos
- Suppress the reporting of kerning (and other `gpos') differences.
- --ignoregsub
- Suppress the reporting of ligature (and other `gsub') differences.
- --ignorenames
- Suppress the reporting of name string differences.
- --ignorebitmaps
- Suppress the reporting of bitmap differences.
- --exact
- Require outlines to match exactly.
- --warn
- Warn if the outlines/references are slightly different.
- --merge outfile
- Store a merged version of the two fonts into the specified output file.
The merged data will be based on sfdfile1, as well as any
characters present in sfdfile2 but not in sfdfile1 will be
added, and the outlines of sfdfile2 will be placed in the
background. Finally, for any characters with different outlines or
references the background of the character will contain the outlines from
sfdfile2 (references will be unlinked into outlines and those
outlines also will be added).
- --usage
- Display the usage description.
- --version
- Display the current version.
SEE ALSO¶
fontforge(1)
The HTML version of the
fontforge manual at:
- http://fontforge.sourceforge.net/
AUTHOR¶
Copyright (C) 2000-2006 by George Williams (gww@silcom.com). Manual page heavily
rewritten and modified to use standard
-man(5) macros by R.P.C. Rodgers
(rodgers@nlm.nih.gov), 23 October 2002.