Thanks, gorilla, for your help. However, this did not work for me. Perhaps I need to upgrade to a more current Visio. I don't have a fill for my text boxes (it's the text and not the graphic that renders illegibly). However, I tried putting a solid background in the text boxes. With my older version (2002), I had to select Format>Fill>1:Solid. Then I pasted as an EMF into Word.

As before, the graphic shrank in size when pasted into Word. I then ran the Acrobat converter. The graphic disappeared from the pdf, as it had before. Therefore, I re-pasted the Visio image into Word as a plain Metafile, which also pasted in at the correct size. (This used to be the "Picture" selection in the older version of Word, but the newer versions don't have it. Thus, I had to use a macro.) Then when I ran the Acrobat converter. The graphic did display, but the text was of very poor quality as before.

Again, thanks for trying to help me. I'm not sure there is a solution, other than the tedious work-around I described in my 12-02-2013 post above. I'm still hoping, though.