| Freelance.st
V2.0 (database beta)
10 March 2010
Services:
May 2003
Welcome
to the 'services for freelaners' section. From here you can
view tips and links to make a start to getting ahead in the
freelance world, or you can order products at cheap and reasonable
prices. Click the icons to the right for more information
on products you can order... (this section will be updated
on a regular basis)
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| Resolution:
How it all works... |
| Relative
to printed pages the computer screen is a low-resolution medium.
When you look at illustrations, photographs, and other sophisticated
imagery, however, the differences in quality between conventional
four-color printing and the computer screen are not as great
as you might expect.
In terms of resolution, the computer screen
is limited to about 72 to 92 dots per inch of resolution.
But most four-color magazine printing is done at 150 dpi,
or only about four times the resolution of the computer screen
(150 dpi is four times the resolution of 75 dpi because resolution
is measured over area, 150 x 150 per square inch):
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| Screen
resolution refers to the number of pixels a screen can display
within a given area. Screen resolution is usually expressed
in pixels per linear inch of screen. Most personal computer
displays have resolutions that vary from 72 to 96 pixels per
inch (ppi). The resolution of the display screen is dependent
on how the monitor and display card are configured, but it's
safe to assume that most users fall into the lower end of the
range, or about 72 to 80 ppi.
Images destined for print can be created at
various resolutions, but images for Web pages are always limited
by the resolution of the computer screen. Thus a square GIF
graphic of 72 by 72 pixels will be approximately one inch
square on a 72-ppi display monitor. When you are creating
graphics for Web pages you should always use the 1:1 display
ratio (one pixel in the image equals one pixel on the screen),
because this is how big the image will display on the Web
page. Images that are too large should be reduced in size
with a sophisticated image editor like Adobe's Photoshop to
display at proper size at a resolution of 72 ppi.
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