Adobe photoshop cs2 Benutzerhandbuch

ADOBE PHOTOSHOP CS2 

OpenEXR (EXR) is a file format used by the visual effects industry for high dynamic range images. The film format 
has high color fidelity and a dynamic range suitable for use in motion picture production. Developed by Industrial 
Light and Magic, OpenEXR supports multiple lossless or lossy compression methods. An OpenEXR film can contain 
an arbitrary number of channels, and the format supports both 16-bit and 32-bit images. 

PCX format is commonly used by IBM PC-compatible computers. Most PC software supports version 5 of PCX 
format. A standard VGA color palette is used with version 3 files, which do not support custom color palettes. 

PCX format supports Bitmap, Grayscale, Indexed Color, and RGB color modes, and does not support alpha channels. 
PCX supports the RLE compression method. Images can have a bit depth of 1, 4, 8, or 24. 

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 
supports 16-bits-per-channel images. Adobe Acrobat also has a Touch Up Object tool for minor editing of images in 
a PDF. For more information about working with images in PDFs, see Acrobat Help. 

Photoshop and ImageReady recognize two types of PDF files: Photoshop PDF files and Generic PDF files. You can 
open both types of PDF files; however, you can save images only to Photoshop PDF format. 

Created using the Photoshop Save As command. Photoshop PDF files can contain only a 

single image. 

Photoshop PDF format supports all of the color modes (except Multichannel mode) and features that are supported 
in standard Photoshop format. Photoshop PDF also supports JPEG and ZIP compression, except for Bitmap-mode 
images, which use CCITT Group 4 compression. 

Created using  applications  other than Photoshop, such as Adobe  Acrobat and  Adobe Illustrator.  

They can contain multiple pages and images. When you open a Generic PDF file, Photoshop rasterizes the image. 

PICT format is used in Mac OS graphics and page-layout applications as an intermediary file format for transferring 
images between applications. PICT format supports RGB images with a single alpha channel and Indexed Color, 
Grayscale, and Bitmap mode images without alpha channels. PICT format is especially effective for compressing 
images with large areas of solid color. This compression can be substantial for alpha channels with their large areas 
of white and black. 

When saving an RGB image in PICT format, you can choose either a 16-bit or 32-bit pixel resolution. For bitmap and 
grayscale images, you can choose from 2, 4, or 8 bits per pixel. In Mac OS with QuickTime installed, four JPEG 
compression options are available.