Adobe photoshop cs2 Benutzerhandbuch

ADOBE PHOTOSHOP CS2 

The Macromedia Flash (SWF) file format is used for playing animated compositions. The animated compositions 
can provide website interactivity and navigation. Any browsers with the Macromedia Flash Player plug-in can read 
the SWF format. Because the SWF format can save animations as vector images to maintain a small file size, it is a 
good choice for animations with solid areas of color and sharp object definitions. A SWF file can also contain raster 
(bitmap) images and QuickTime movies. However, raster images and QuickTime movies increase the size of a SWF 
file significantly. 

Keep these features of the SWF format in mind: 

You can also choose a compression format for any embedded bitmap, such as JPEG, Indexed, and Truecolor. The 
default format for the embedded bitmaps in an SWF file is JPEG. Note, however, that bitmap objects usually 
increase the composition’s file size. 

The SWF format supports solid-color backgrounds only. Gradients or textures applied to the background of a 
composition are exported as a backdrop object—a bitmap object that appears behind all the other objects in the 
composition. 

The SWF format is a streaming format, and the composition plays as soon as a certain amount of the file has 
downloaded. 

The Targa® (TGA) format is designed for systems using the Truevision® video board and is commonly supported by 
MS-DOS color applications. Targa format supports 16-bit RGB images (5 bits x 3 color channels, plus one unused 
bit), 24-bit RGB images (8 bits x 3 color channels), and 32-bit RGB images (8 bits x 3 color channels plus a single 8-bit 
alpha channel). Targa format also supports indexed-color and grayscale images without alpha channels. When saving 
an RGB image in this format, you can choose a pixel depth and select RLE encoding to compress the image. 

Tagged-Image File Format (TIFF, TIF) 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 documents have a maximum file size of 4 GB. 
Photoshop CS supports large documents saved in TIFF format. However, most other applications and older versions 
of Photoshop do not support documents with file sizes greater than 2 GB. 

TIFF format supports CMYK, RGB, Lab, Indexed Color, and Grayscale images with alpha channels and Bitmap 
mode images without alpha channels. Photoshop can save layers in a TIFF file; however, if you open the file in 
another application, only the flattened image is visible. Photoshop can also save annotations, transparency, and 
multiresolution pyramid data in TIFF format. 

In Photoshop, TIFF image files have a bit depth of 8, 16, or 32 bits per channel. You can save high dynamic range 
images as 32-bits-per-channel TIFF files.