Arnis- The question is what does a PPD. A PPD is defined as Postscript Printer Description. A PPD files are text files that provide a uniform approach to using the device features that contain PostScriptrinterpreters. Such features include different page sizes, different methods of paper handling, memory size, font availability and finishing features such as duplex printing and stapling.,. All printers to not have the same features, and even printers with the same features do not necessarily invoke those features in the same way. PPD files provide applications with the necessary information about a device's features including the features options, the default settings, how other information that might be used for scheduling jobs.
All PS printers have a PPD file associated with it. This PPD files for all printers are accessible to a guiven host computer are stored on the host computer. Applications on the host computer can parse PPD files to discover the list of available features on a printer.
The PPD fil also contains the PostScript language code to invode each feature. When you select afeature from the user inerface, such as manual feed or duplex printing, the code for each selected feature is extracted from the PPD file and included in the appropriate place in the output file before the output file is sent to the printer.
In otherwords, my Tektronis 550 has a PPD that Tektronix wrote or wrote with Adobe to allow it to use those features they offered. In some cases those features appear in when you select Print as a graphical representation of the printer and its trays, feed , etc. Local customuization to a PPD can be added at the user site to accommodate changes to the printer, such as the addition of fonts or memory, or to configure a device a certain way.
In the Adobe PDF printer, Adobe has created and maintains their PPD, but has no actural printer.
Since I'm not having a problem with my PDF or PS file(s), I see no reason to do your simple compare. Hard to grasp a concept that is working.
Your later suggestion to 1adobe to check the Links under Format>Document>Dcocuemnt>PDDF Setup...links tab is good idea, only you didn't re-read 1adobe comments. Using Save as PDF does not work. The only way around the problem has been to break up the document by creating seperate PS files and distilling then and them combinding the PDFs.
I still believe that there is one file in the book that has a problem, since 1adobe can break up the book. Once that file is fixed, then iadoe can either use the Save AS PDF option or generate a PS file and distill.
Sean- Maybe if you had something of value to add to 1adobe_user's problem and stop giving misleading information on PS printers, PPD's and Postscript drivers 1adobe_user may be able solve their problem.
I have had a simular problem with a document that iadobe has, but did not do the work around. Instead I did narrow it down to one chapter in the book, temp. removed the chapter, updated the book and generated a PDF. Since it resulted in a valid PS file and a PDF, I then knew that I had a bad Chapter, and was able to correct the formating problem(s)that was in that file