When I create a PDF from Word for Mac and open it in Acrobat X the font looks fine. When I add tags, however - which I must do for accessibility reasons - random letters seem to disappear (usually from 1- to 3-letter words).
I am using a Mac running OS X Lion, using Word for Mac v 14.2.5 and Adobe Acrobat Pro 10.1.4. The only font I have seen this problem with is Calibri, but I would prefer not to simply switch fonts as all our documents use Calibri. The problem is we must now make them 508 compliant (accessibility). As I had not added tags before I had not had this problem. If I manually add tags via the TouchUp Reading Order tool, I don't have this problem. This is fine for short documents, but it just isn't feasible long-term.
I have tried embedding fonts through preflight before adding tags, to no avail. Does anyone have any suggestions? Is there a fix for this?
I wonder if the text is dropping out or somehow just slipping underneath a layer in the PDF. I have no idea without trying myself and I just don't have the same set up you have (I have a Mac but do not have Word on that machine; I typically run Word on a Windows 7 machine and do all my accessibility work there).
One thing I would try, which someone referenced in another thread -- "when exporting the tagged PDF with 'Create Acrobat Layers' selected it stopped the text from going behind objects (disappearing)." They had a different workflow (using Indesign) so it may not work for you, but it's worth a try.