Hopefully someone with AutoCAD experience will jump in to help. If you click on the SEARCH button above you'll find lots of other posts from CAD Users already listed in this Forum.
I've deleted your other three Topics on the same issue. That way other Users can find answers in this one thread. Please post only once. Thanks.
P.S. Would you click on the Preferences button above and change your login to reflect your real name please? Or add your name after your messages. This is a professional forum, and as you can see, we prefer to use full names here. Thank you.
What I believe is happening, and I haven't tested it, is that the wipeout command basicly creates a solid filled box directly under the text that you have selected. Through the magic of Lisp and Arx the command matches the color of the background, in most cases that is black. Maybe if you change the display background color to something else, like white, before you export it to Acrobat, you might get the result you're looking for. The setting is under Perferences, or under Options in Acad 2004. Just a thought.