Adobe Acrobat Reader 
(ver 1.0)
Freeware

*.PDF file viewer  

This is the only Acrobat Reader ever offered by Adobe.  Adobe no longer 
supports the product, and the program cannot read files saved in the 
newer Adobe Acrobat Portable Document File format.  Adobe has no plans 
to release an updated DOS Acrobat Reader.  

Because many newer PDF files can NOT be read by this software, you 
should try using a PDF conversion tool to convert your PDF files into 
some other file format that is more DOS friendly.  

.