>>I noticed you mentioned I should print to a Distiler virtual printer. I don't know how to do this.<<
When you go to the Print menu (NOT Print Styles, but File>Print), Distiller should be listed as one of your printers. Choose Distiller as your printer, and also make sure that you choose Distiller's PPD in the box beneath.
>>For color and greyscale bitmaps, Downsample to 72 dpi<<
This is where you are going wrong, and the images appearing fuzzy. You should choose a much higher resolution. Although I no longer have Distiller 3 on my computer, the various options are listed on this website:
If you have problems accessing this site, then do the following under the General tab:
File Settings compatibility: Acrobat 3
Device settings: default resolution 2400 dpi, and set your page size.
Under the Compression tab:
Select 'Compress Text and Lineart'
Set Color Bitmap and Greyscale Images to downsample to 300 dpi (or 200 dpi for desktop printer). Use as your auto compression: ZIP/JPG low.
Set mono bitmaps to 1200 dpi (or whatever the resolution of the target output device i.e. printer, is), manual compression to CCITT Group 4.
Under the Fonts tab, embed all fonts and subset below 99%.
You normally shouldn't need to touch the Advanced settings. Most of the settings are only relevant if you are using spot colors and/or having the PDF commercially printed (settings listed in more detail at the link supplied). However, judging by some of your settings, they need to be changed for desktop printing. I don't think you should check 'Convert CMYK images to RGB', however, experiment with this setting - you may get better colors to a desktop printer if you convert CMYKs to RGB. Color conversion should be set as 'Unchanged'. Remove Apply transfer functions, Remove under Color Removal/Black Generation.
>>Are all display preferences to smooth line art?
I'm not sure what that means but in Pagemaker under..Preferences, general, graphics display. I have High resolution checked.<<
I meant in your Acrobat Reader Preferences, not Pagemaker's.
>>The scanned image I referred to is just a schematic diagram and is black and white.<<
1-bit images such as these (i.e. mono bitmaps) need to be scanned at a VERY HIGH resoluition to get the best possible result. Scan at whatever is the highest your scanner can do (1200dpi?), save as a TIF and place in PM. Then make your PDF using the settings described above.
Re the Visio drawings.... once you hsave sorted out how to print to file using Distiiler, then you can make either a PDF or and EPS of these drawings directly from Visio, and can then place them in your PM file. If they are also pure B&W, then use the settings outlined above.
That's a lot of information for you to digest. If you need more help, just post back.