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How does Prep4PDF work?

A little background
One way of making PDFs from any program is to "print" to a PostScript file, then use Adobe's Distiller, GhostScript or one of several other programs to convert the PostScript into a PDF.

In fact, this is exactly what happens "behind the scenes" when you print a PowerPoint or other file to the Adobe PDF printer, Distiller Assistant, etc.

The PostScript file can contain certain bits of "magic" code that a regular printer ignores, but that turn into useful things like links, bookmarks, comments and so forth when a program like Distiller converts the PostScript to PDF. This code is called PDFMark, and is often added in the form of little EPS files within the main document.

That's where Prep4PDF comes in. It analyzes your PowerPoint file, locates hyperlinks, action settings, comments and other features, then inserts the needed PDFMark code to duplicate these features in PDF. It pops these in as small EPS files; the contents of these files get passed along into the resulting PostScript and then on to Distiller (or similar programs) when you print to the proper printer.

Prep4PDF can automatically add these PDFMark EPS files, print to your chosen printer driver, then delete the EPS files, all with a single click of a button. Or you can have it create and place the PDFMark EPS so you can control the printing process yourself. Then when you're ready, you can have it delete all the EPS files it's added.

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