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design glossary > P
Glossary of graphic design and web page design terms
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PDF
Stands for Portable Document Format. Created by
Adobe Systems in its software program Adobe Acrobat as a universal browser.
Files can be downloaded via the web and viewed page by page, provided
the user is computer has installed the necessary plug-in which can be
downloaded from Adobe's own web site.
PHP
Abbreviation for Hypertext Pre-Processor.
Plug-In
A software extension that provides added capabilities to the browser,
for purposes such as viewing, hearing, or saving specially formatted
files. Most plug-ins are available via the creator's web page for downloading.
PNG
Stands for Portable Network Graphics format, and
is generally pronounced "ping." PNG is used for lossless
compression and displaying images on the web. The advantages of PNG
is that it supports images with millions of colors and produces background
transparency without jagged edges. The disadvantages are that PNG images
will not show up on older browsers, and still can be comparatively larger
in file size than GIFs.
PPI
Stands for pixels per inch. PPI specifies the
resolution of an input device, such as a scanner, digital camera,
or monitor. Web page resolution ranges from 72-96 pixels per inch. (For
information on output device measurements see dpi.)
Post
A post is a single message sent to a newsgroup or message board.
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