Their post starts with "Word 365 document" so I assumed the profile version is not correct.

Printing to PDF results are variable.
If I choose the "Microsoft Print to PDF" driver then Word diverts to the Export settings - same poor result as SaveAs
If other 3rd party PDF printer drivers are loaded (my work machine has Nuance PowerPDF) I can get bigger resultant PDF file sizes but not the bookmarks I also need (navigation pane of heading structure).
I don't have the Adobe Acrobat loaded so I can't test that but I would hope that it still gives both bookmarks and high-res graphics.

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Andrew Lockton
Chrysalis Design, Melbourne Australia