PostScript consists of two files: a bitmap “screen font” component
for onscreen display and a printer component that contains PostScript instructions
for actually printing the character. PostScript is make of pixels therefore
bitmap component alone can’t provide acceptable resolution for output.
True Type format was the result of collaboration between
Apple Computer and Microsoft and consists of a single file.
Open type fonts are single-file fonts and do not have
separate screen and printer fonts to keep track of. Also are cross platform.
That doesn’t mean that Adobe Garamond Pro comes in a Macintosh version and an
identical Windows version. Instead, the same font file can be used on a Mac or
PC with no special handling. OpenType fronts are compatible with all recent
RIPs, and all current font-management software. One of the motivations for the
OpenType format was to provide multilingual support.
Font Family is a group of similar fonts that include italic,
normal, bold, and other variations of that font.
Glyphs is a distinct letterform. Multiple Glyphs may exist
for a single character position in an OpenType font.
Dfonts are data fonts also known as system fonts they are
not to be used they are data only they are two headed file consisting of data
fork and research fork.
Multiple Mater Fonts: Adobe’s Multiple Master fonts were a
great idea: Start with a PostScript font, and then give users the ability to
create multiple weights, angles, and widths of a single font. The problem arose
from the lock of knowledge knowing how to utilize it. So the Multiple Mater
concept died. However, Multiple Master technology is still used for display and
printing when fonts are missing in a PDF and for displaying text when fonts are
unavailable for an InDesign or Illustrator file.
Licensing: You probably don’t think a font as software, but
that’s how fonts are distributed and licensed. Both you and the print service
must have purchased license for the font to print.
File Naming right now Mac and PC platforms currently allow a
total of 255 characters. Whine windows allows file names of 255 characters, it
limits a total path designations to 260 characters. Mac OS 9 are limited to 31
character filenames. File names also do not need punctuation a good rule of
thumb is this: don’t include any characters traditionally used in a comic
strips to indicate profanity such as !@#$*%. Stick to solely alphanumeric
content-uppercase and lowercase letters, coupled with numerals, spaces,
underscores, and hyphens. Avoid colons and slashes. If we are sending your Mac
file to a PC print service provider they will have to rename your file to even
allow copying which will then munge all your image links, forcing them to
update your images. Both Windows and Mac OS X prevent you from typing colons in
filenames, and either operating system allows you to begin a file or folder
name with a period. An initial period renders a file invisible under UNIX.
Extensions most file extensions consist of three letters but
some applications create file with longer extensions such as .html a period
always separates the filename from its extension, as in Image.tif. Failure to
append the correct file extension may prevent accessing file in other ways,
such as attempting to import or place the file in another document.
Formats that can cross platforms: OpenType font is a cross platform
font.
Information source: Adobe Creative Suite Applications,
written by Claudia McCue.
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