Adobe Acrobat Reader - This is a program available free
from Adobe Co. It must be installed on your computer in order for
you to view files that have been created in .pdf
format.
It is very useful and should be on every computer.
dpi- Dots per inch. Monitors are only capable of
displaying 72 dots per inch. Most printers are capable of printing
images in 300 or 600 dpi or more.
.gif - Graphic Interchange Format (.gif) supports 256
colors and can be made transparent and/or animated. Given two images
of equal dimensions, a .gif file consists of fewer kilobytes and
will download faster than a .jpg. However, since it supports only a
low number of color, .gif format is generally used primarily for
line drawings and buttons.
.html- Hypertext Markup Language (.html) is the computer
language (code) used by web pages. It may be viewed on a wide range of
computer types around the world.
.jpg- Joint Photographic Group (.jpg) format
is a file
compression scheme used for Web graphics. Unlike .gif, the .jpg format
supports up to 16 million colors which makes it a superior method of
presenting color photographs. Also .jpg files cannot be animated or
made transparent.
lossless - Does NOT loose any image information when the
file is saved. A lossless format (such as .tif, .bmp or .psd) does not compress the file each
time it is saved. Since no information is taken out, the files
remain large but the image quality remains high.
lossy - Loses image information every time image is saved.
This happens because these formats (such as .jpg or.gif) compress the file each time it is
saved. It makes for a smaller file size but some of the information
squeezed out also results in a lower quality image.
MSWord - Microsoft Word is a word processing program which
saves files with a .doc extension. For submitting information
for your website, it is easy to send files as an email attachment
created in MSWord format. You can also choose to Save As a .rtf (see
below) file which may be opened by most common word processing
programs.
.pdf - Portable Document Format (.pdf) is the Adobe Acrobat
Format
for saving documents for use on the Web. You can take a
document created in a desktop publishing programs such as Adobe
PageMaker and save it as a .pdf file which will preserve all the
formating and "look" of the document. This may be posted
on the website and visitors will view it with Adobe Acrobat Reader
on their own computers.
resolution - How many pixels (ppi) or dots (dpi) per inch
are in an image. Higher the resolution the better quality the image
but also the larger the file. Images to be used on the Web need only
be at a resolution of 72 dpi since that is all that monitors will
show. Images that will be printed, will provide better quality when
created at 300 or 600 dpi but the file sizes will be very large.
.rtf - Rich Text Format (.rtf) is a file format that lets
you exchange text files between different word processors in
different operating systems. For example, you can create a file
using Microsoft Word and save it as an .rtf
file (it will have a ".rtf" file name suffix).
.tif or .tiff- Tag Image File Format (.tif or .tiff) is a
lossless image format with a capacity for millions of colors.
Primarily used for print. Not suitable for the web because of the
very large file size.