There are files of type .pdf that are supposed to be copies of NASA reports. How do I look at these or print them?
These are files in portable document format (PDF). To read them, you need a PDF reader. The most commonly used program is Adobe Acrobat Reader. You can download a copy from the Adobe web site. You can also purchase the entire Acrobat package from Adobe (about $200) that lets you create PDF files and convert scanned documents into PDF. The Acrobat reader, which is free, only lets you read files that other people have created. The Acrobat reader acts as a plug-in for Firefox and Microsoft Internet Explorer that let you view a PDF directly in your browser. On a Macintosh, use the Preview application that comes with each Mac.
