Since the last update to the mentioned Version, many of our pdfs are displayed with strange font settings.

See the attached file. (I had to black out the document.)

Around 160 PCs do have these problems in our Company.
Other PDF Viewers are working like expected. The Problem only occours in adobe acrobat reader.

So, i dont find any possiblilty in adobe acrobat reader to change the default font.
So how can we fix this problem?

PDF created with: PDF2PDFA Converter - www.xkey.at
PDF Version: 1.7 (Acrobat 8.x)

Thanks.