Font Overlapping

In MS Word, go to the Acrobat tab, click on it and select "Preferences"  from the Acrobat menu toolbar.

See the slides I am posting for you below.

I created a preset just for MS Word to PDF conversion settings to help another user who had similar issue.

In my slides my preset is called toMSWORD. To create and save a custom preset click on the "Advanced Settings ..." button and enter the same values as shown in the illustrations for each section.

the Fonts section in particular is the most important one. You'll need to manually embed all MS Windows Fonts.

When you're done save the preset under a name, and the next time you'll convert that MS Word document to PDF select the customized preset that you created from the dropdown menu "Conversion Settings:" as shown in the dialogue window to the left of the "Adobe PDF Settings" dialogue window on each of the slides below.

I hope this helps.