[tex-k] A question on inclusion of poscript file into LaTeX document

[Andrew Komornicki]

I have a question about the behavior of Latex/pdflatex when one
wants to include a figure in the form of a postscript file. 
my test file does a simple \includegraphics of a postscript file. 
Eventually I would like to create a pdf file as a final document. 
A simple test file is found at the end of this brief note. 
 
 this is a current version of TeX/Latex as the log file shows: 
This is pdfeTeX, Version 3.141592-1.21a-2.2 (Web2C 7.5.4) 
(format=latex 2008.2.17)  8 SEP 2008 16:36 entering extended mode 

Have run my test file in three(3) modes. 

  1.  latex axx.tex 
       --  runs correctly and produces a dvi file 

  2.  latex axx.tex 
        the file contains the directive \pdfoutput = 1
        the run aborts with the comment: 
     Non-PDF special ignored!
     Non-PDF special ignored!
     Non-PDF special ignored!] (./axx.aux) ) 
     -- note, no pdf file produced....... 

  3.  pdflatex axx.tex  
       the run aborts with the comment: 
    ! LaTeX Error: Unknown graphics extension: .ps.
     -- note, no pdf file produced....... 

  My question is whether this behavior is correct and expected. 
if so why?  should not all three of these modes produce a correct 
output file, whether  dvi, or pdf ?? 
 
 any and all insights are very much appreciated. 
 
regards,
andrew 
 
The following example illustrates my problem. 
--------------------------------------------
\documentclass[11pt]{article} 
\usepackage{graphicx}
% \pdfoutput = 1

\begin{document} 

   test file with Postscript figure

\begin{figure}[!ht]
\includegraphics[scale=0.5,angle=-90]{fig1.ps} 
\caption{ Sketch of a typical cathode ray tube }
\end{figure} 

\end{document}