PCD format from a PDF document

I believe that PCD is the Kodak PhotoCD image file format.

Kodak PhotoCD files are a proprietary format developed by Kodak for photographic image storage.

The PIW's KODAK PCD Film Scanner 2000 uses a linear array CCD to create a 2048 by 3072 pixels scan (for 35 mm film that is about 2000 pixels per inch). The KODAK PCD Data Manager component of the PIW, working from the high resolution (2K by 3K pixels) scan, separates the luminance data from the chrominance data, and uses differing compression schemes to store the data efficiently.

Photo CD uses the PHOTOYCC color encoding space, which is well suited to compression with minimal recognizable loss of detail. The image data components are stored together in an "Image Pac" format. Some or all of the Image Pac data is used when Photo CD "enabled" software rebuilds the image in whichever of the five different resolutions is requested.

The resolutions available from a KODAK Photo CD Master Disc are:

1. "Base*16" = 2048 x 3072 pixels = Photo quality, high resolution = 18 MB RGB digital file
2. "Base*4" = 1024 x 1536 pixels = HDTV quality = 4.5 MB RGB digital file
3. "Base" = 512 x 768 pixels = TV Image = 1.2 MB RGB digital file
4. "Base/4" = 256 x 384 pixels = large thumbnail = 300 kB RGB digital file
5. "Base/16" = 128 x 192 pixels = small thumbnail = 75 kB RGB digital file

The files are stored on the Photo CD in PHOTOYCC color space, not RGB.

Approximate file sizes are given for reconstructed RGB images as a reference point.

The Image Pac format enables extremely efficient storage, with an average Image Pac file size of 4.5 MB. The actual file size varies from picture to picture-- some scenes compress better than others. Image Pacs can range from 2.5 MB to 6 MB. Photo CD Master discs have a capacity to hold about 100 (perhaps more) images in Image Pac format.

Perhaps this site might help.

http://www.tedfelix.com/PhotoCD/

or this one

http://www.convertzone.com/products/image-converters/abc-amber-kodak-converter.php

Good luck !