Author: gpittman
Date: Fri Nov 3 18:28:26 2017
New Revision: 22215
URL: http://scribus.net/websvn/listing.php?repname=Scribus&sc=1&rev=22215
Log:
adding information about Font Features for OTF fonts
Added:
trunk/Scribus/doc/en/images/LatinModernRomanOTFFeatures.png (with props)
trunk/Scribus/doc/en/images/MontserratOTFFeatures.png (with props)
Modified:
trunk/Scribus/doc/en/fonts2.html
Modified: trunk/Scribus/doc/en/fonts2.html
URL:
http://scribus.net/websvn/diff.php?repname=Scribus&rev=22215&path=/trunk/Scribus/doc/en/fonts2.html
==============================================================================
--- trunk/Scribus/doc/en/fonts2.html (original)
+++ trunk/Scribus/doc/en/fonts2.html Fri Nov 3 18:28:26 2017
@@ -40,10 +40,15 @@
<ul>
<li><b>PostScript fonts</b> were an important part of the Desktop Publishing
revolution. They use the <a href="importhints1.html">PostScript programming
language</a> and have been a standard in professional printing for years. While
most modern printing houses have moved their typesetting workflows to OpenType
in recent years, Postcript fonts can still be reliably used. There are,
however, a few downsides to this old font format: First, PostScript font files
cannot be exchanged between operating systems, as every OS requires different
PostScript font files (and a PostScript font always consists of two files).
Second, PostScript fonts are limited to 256 glyphs per file, which is not
enough by modern standards. To use additional glyphs, you need another font
that provides these glyphs. Scribus can use almost all PostScript fonts, the
exception being CID (Asian) font files. Moreover Scribus can use PostScript
fonts in a platform-agnostic way. For example you can use a Mac Pos!
tScript font (dfont) on Linux or OS/2 in Scribus, even though the operating
system itself (or rather its internal font subsystem) does not support the
format.</li>
<li><b>TrueType fonts</b> were introduced by Microsoft and Apple in the
nineties after Adobe refused to publish the PostScript Type 1 font
specification. Thanks to the freely available TrueType specification the web
has been flooded with low-quality fonts (see below), which resulted in a
healthy dose of mistrust towards TrueType fonts in the printing community.
However, it should be emphasized that this skepticism only had to do with the
source of many TrueType fonts. Technically, a carefully crafted and tested
TrueType font will work without issues in a professional print workflow, so if
you use one of the fonts that are being shipped with products from Microsoft or
Apple or if you buy a TrueType font from a foundry like Bitstream or Linotype,
you shouldn’t expect any problems. TrueType fonts provide several
advantages over PostScript fonts: First, a TrueType font consists of a single
file, which will work “as is” on every modern operating system.
Second,!
a TrueType font can contain more than 60,000 glyphs.</li>
-<li><b>OpenType</b> was the result of a cooperation between Adobe and
Microsoft who both wanted to end to the “font format war” between
the two vendors. Basically, an OpenType font combines the properties of
TrueType and PostScript fonts and provides some additional features.
Technically an OpenType font uses a TrueType “container”, which has
the advantage of having a font available as a single file. Inside the container
both PostScript and TrueType curves can be used to draw the glyphs. It’s
even possible to mix both. Like TrueType, OpenType files can contain a large
number of glyphs. OpenType fonts also offer some features that are interesting
for professional typesetters, such as automated ligatures or alternate glyphs.
While Scribus can use OpenType fonts without issues, it can’t use these
professional OpenType features yet. Today most fonts that are being sold are
OpenType fonts, even if they use a TrueType file extension (*.ttf). As!
rule of thumb, modern fonts with a TrueType extension (e.g. those shipped
with the Windows operating system) use TrueType technology internally, whereas
fonts with an OpenType extension (*.otf) use PostScript.</li>
+<li><b>OpenType</b> was the result of a cooperation between Adobe and
Microsoft who both wanted to end to the “font format war” between
the two vendors. Basically, an OpenType font combines the properties of
TrueType and PostScript fonts and provides some additional features.
Technically an OpenType font uses a TrueType “container”, which has
the advantage of having a font available as a single file. Inside the container
both PostScript and TrueType curves can be used to draw the glyphs. It’s
even possible to mix both. Like TrueType, OpenType files can contain a large
number of glyphs. OpenType fonts also offer some features that are interesting
for professional typesetters, such as automated ligatures or alternate glyphs.
See the next section for some examples of these features. Today most fonts that
are being sold are OpenType fonts, even if they use a TrueType file extension
(*.ttf). As rule of thumb, modern fonts with a TrueType extension (!
e.g. those shipped with the Windows operating system) use TrueType technology
internally, whereas fonts with an OpenType extension (*.otf) use
PostScript.</li>
</ul>
+<h3>New Open Type features in Scribus</h3>
+<p>As of version 1.5.3, Scribus now has begun to offer some of these
interesting alternative glyphs in Open Type Fonts. There are currently a few of
these, and they also depend on what features are included in the font. Where
you look to find these is in the Text Properties palette, under <strong>Font
Features</strong>. Cantarell will show no features, but a couple of fonts which
do are shown below, on the left for Latin Modern Roman, and on the right for
Montserrat.</p>
+<table><tr><td align="center">Latin Modern Roman</td><td
align="center">Montserrat</td></tr>
+<tr><td valign="top"><img
src="images/LatinModernRomanOTFFeatures.png"/></td><td><img
src="images/MontserratOTFFeatures.png"/></td></tr>
+</table>
<h3>Trustworthy Fonts</h3>
<p>High quality fonts are essential for reliable output, no matter which
platform. It’s not an indication of snobbery if pre-press professionals
are highly skeptical of freely downloaded shareware or freeware fonts.
Experience has shown that many freeware fonts do not follow normal font
specifications. Issues like improper encoding, a missing or incorrectly
formatted PostScript name, broken curves in individual glyphs and other defects
are not uncommon to many of those. Making good and reliable fonts for a
professional printing environment is not easy and requires extensive QA
testing. An example: Verdana from the MS web font collection took almost a year
to create.</p>
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