You can't open acrobat then do a file/"combine" process? Acrobat will "combine" just about any file type. Make sure you're trying the combine function, not create. Could it be that acrobat 8 is too old and won't recognize a docx file? Try saving the document as an older type .doc file and combining it in acrobat maybe? I'm reaching here; haven't played with my office10 much as of yet and am not looking forward to it one bit.