When I open a PDF file in Acrobat 8.1, I am able to make changes using either the type writer tool or by inserting header/footer. The document appears to be normal on the screen but when it prints, the only legible words on the document are the inserted or typed words. The rest of the information on the document becomes a blob of pixels. Has anyone else experienced this? I cannot find a fix for it in any of the Adobe troubleshooting links.