This is pclcomp -- An HP-PCL compression filter. It reads in PCL graphics files, and outputs compressed PCL files which may be sent directly to printers that support the compressions. A partial list of printer support is included. Why use pclcomp? 1) PCL files are much smaller (I routinely see compressions up to 90%. 2) Graphics printing on a LaserJet (IIP or III) is faster. If you have a LaserJet II that does not support compression, you can still compress the files for storage, and decompress them while printing. I wrote this program for testing. This is NOT an HP product. It will NOT be supported by HP, but rather myself, in my spare time, if need be. If you need real support for driver development, then call Hewlett- Packard directly, preferably the ISV support group at the Boise Division (I think). You may use parts of this code within your drivers to support compression if you wish. I did what I think is a reasonable job to make the program work for most possible PCL files. Please feel free to send comments, complaints or suggestions to me at firstname.lastname@example.org. If you have a file that does not survive the filter intact, please e-mail me the file and describe the problem. You will have to proved a getopt() function. This filter runs under UNIX and MS-DOS and hopefully anything else that supports ANSI-C. Please direct all compliments and praise to: email@example.com -- Tony Parkhurst
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