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the expression resolves to the name of an image resource. In the case of a dynamic image that references
external images, the expression resolves to the pathname of an image file. As the input data changes during
document execution, each time the document resolves the expression, it obtains the name of a different
image resource or to the pathname of a different image file.
Thus to create a dynamic image you must be able to construct a PlanetPress Talk expression that resolves to
the name of the image resource, or, in the case of a dynamic image that references external images, to the
pathname of the image file.
13.1.2 Supported Image Formats
What image formats does PlanetPress Design support?
The following summarizes the image formats PlanetPress Design supports for both static and dynamic images.
Format: Extension: Type: PlanetPress Design supports:
BitMap
Picture
BMP Bitmap 1-, 4-, 8-, and 24-bit images in Windows format. Supports
uncompressed and Run Length Encoded (RLE) formats. Does
not support RLE for 24-bit images.
Encapsulated
PostScript
EPS Vector,
Metafile
EPS files that conform to the Adobe Encapsulated PostScript
File Format Specification (Adobe Technical Note #5002).
Joint
Photography
Experts
Group
JPEG, JPG Bitmap 8-bit grayscale and 24-bit color images. Supports save quality,
progressive save, and optimized Huffman codes.
Portable
Document
Format
PDF Metafile PDF 1.5 format (Acrobat 6) without encryption or security
settings.
Portable
Network
Graphics
PNG Bitmap 1-, 4-, 8-, and 24-bit images. Supports gamma adjustments,
progressive save, and variable compression levels. Also reads
but does not consider the alpha channel.
Tagged
Image File
Format
TIF, TIFF Bitmap 1-, 4-, 8-, and 24-bit uncompressed images. TIFF images that
use LZW compression. CCITT group 3 1D, CCITT group 3 2D,
CCITT group 4, Packbits, Zlib (deflate), JPEG. Also supports
multi-page images but restricts output to only the first
image.PlanetPress Design now supports TIFF images that use
LZW compression.
In the case of dynamic images that reference images external to the document, in addition to the supported
formats listed above, documents can also accept images in the PostScript format generated by the Image
Downloader.
Related topics:
Static and Dynamic Images (Page 168)
Image Formats: Bitmapped, Vector, and Metafile Formats (Page 171)
Resolution (Page 172)
Color Depth (Page 192)
Pixel Dimensions (Page 175)
Image Quality (Page 176)
Scanline Orientation (Page 352)
Image Size on the Document Page (Page 179)
Adding Images - Key Concepts
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