The final step in building the guide is to create a PDF file from it. Not only can PageMaker export to PDF directly, it also provides a high degree of control over how the PDF is created.
When PageMaker exports to PDF, it sends the publication to Acrobat Distiller in a process much like printing. The PDF version of the publication that Distiller produces will take up much less disk space than the original publication but will still be viewable at high quality across platforms, by using the Acrobat Reader.
If the amount of memory installed in your computer is not much more than the amount recommended for PageMaker, free up memory by closing all other applications except PageMaker.
Choose File > Export > Adobe PDF. Save ...