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GRAPHIC FILE TYPESBy Erin Daughtrey
VECTOR GRAPHICS
A Vector graphic uses geometrical formulas such as lines, points, and curves to create shapes. These shapes can be
moved, resized, and changed in any way without any loss of
quality
A raster graphic also known as bitmap
represent a grid of pixels or points of
color. These graphics can not be resized without loss
of quality
Raster Graphics
GIF: GRAPHICS INTERCHANGE FORMAT
GIF is a compressed file format. GIF graphics are based on a palette of up to 356 colors called indexed colors, which helps reduce their file size. These graphics are good fro small
icons, animated images, and logos. GIF doesn’t have the color range for
high quality photos.
PNG: PORTABLE NETWORK GRAPHIC
PNG is a more powerful alternative to the GIF. PNG’s are not restricted to 256
color limitations. They also do not support multiple frames or
animation. PNG’s are widely supported but GIF is still the most
popular.
SVG: SCALABLE VECTOR GRAPHIC
SVG graphics are vector graphics that enable
two-dimensional images to be displayed on
websites. These images are created with text-
based commands. These images are also scalable
with the size and resolution of the window in which it is displayed.
PSD: PHOTOSHOP DOCUMENT
PSD is an application specific format. At first not many programs but now there are many programs even ones that are not adobe that support PSD. Most programs support PSD files as
read only.
TIFF: TAGGED IMAGE FILE FORMAT
TIFF is a raster only format that is used for photos in the prepress world. IT is also the most reliable widespread format for raster
data. It can be used in any resolution or color scheme and rarely causes any problems.
RAW IMAGES Raw images are also called Camera Raw. This
isn’t necessarily a graphic format & Photoshop as well as other editing programs are trying to overcome problems created by
RAW images.
JPEG: JOINT PHOTOGRAPHIC EXPERTS GROUP
JPEG is a compressed image file format. There is no limitation of color like GIF images. JPEG is best for compressing photographic images. Large colorful
images are normally JPEG images. If a JPEG image is compressed too much the image becomes blocky and some of the detail is
lost.