Graphic File Format types:
AI
Native Adobe Illustrator (AI) source
file format. Vector based. This is the industry standard
vector drawing program.
EPS
Encapsulated PostScript (EPS) language file format
can contain both vector and bitmap graphics and is
supported by virtually all graphic, illustration,
and page-layout programs. EPS format is used to transfer
PostScript-language artwork between applications.
EPS format supports Lab, CMYK, RGB, Indexed Colour,
Duo tone, Grayscale, and Bitmap colour modes, but
does not support alpha channels. EPS does support
clipping paths. Desktop Colour Separations (DCS) format,
a version of the standard EPS format, lets you save
colour separations of CMYK images. To print EPS files,
you must use a PostScript printer.
GIF
Graphics Interchange Format (GIF) is the file format
commonly used to display indexed-colour graphics and
images in hypertext markup language (HTML) documents
over the World Wide Web and other online services.
GIF is an LZW-compressed format designed to minimize
file size and electronic transfer time. GIF format
preserves transparency in indexed-colour images; however,
it does not support alpha channels.
JPEG
Joint Photographic Experts Group (JPEG) format is
commonly used to display photographs and other continuous-tone
images in hypertext markup language (HTML) documents
over the World Wide Web and other online services.
JPEG format supports CMYK, RGB, and Grayscale colour
modes, but does not support alpha channels. Unlike
GIF format, JPEG retains all colour information in
an RGB image but compresses the file size by selectively
discarding data.
A JPEG image is automatically decompressed when opened.
A higher level of compression results in lower image
quality, and a lower level of compression results
in better image quality. In most cases, the maximum
quality option produces a result indistinguishable
from the original.
PDF
Portable Document Format (PDF) is a flexible, cross-platform,
cross-application file format. Based on the PostScript
imaging model, PDF files accurately display and preserve
fonts, page layouts, and both vector and bitmap graphics.
In addition, PDF files can contain electronic document
search and navigation features such as electronic
links.
PDF files are created using applications like Adobe
Acrobat and Adobe Illustrator, and can contain multiple
pages and images.
PNG
Ideal for use in Microsoft Word documents.
Developed as a patent-free alternative
to GIF, Portable Network Graphics (PNG) format is
used for lossless compression and for display of images
on the World Wide Web. Unlike GIF, PNG supports 24-bit
images and produces background transparency without
jagged edges; however, some Web browsers do not support
PNG images. PNG format supports RGB, indexed-colour,
grayscale, and Bitmap-mode images without alpha channels.
PNG preserves transparency in grayscale and RGB images.
Tagged-Image File Format (TIFF)
is used to exchange files between applications and
computer platforms. TIFF is a flexible bitmap image
format supported by virtually all paint, image-editing,
and page-layout applications. Also, virtually all
desktop scanners can produce TIFF images.
TIFF format supports CMYK, RGB, Lab, indexed-colour,
and grayscale images with alpha channels and Bitmap-mode
images without alpha channels. |