Then how come you are having so much dificulty grasping this simple concept.  
For your illustration I have here included the first few lines of a PostScript 
file...

------------- Start PS ---------------------

%!PS-Adobe-3.0
%%Creator: groff version 1.09
%%CreationDate: Tue Mar 21 09:47:57 1995
%%DocumentNeededResources: font Times-Bold
%%+ font Times-Italic
%%+ font Times-Roman
%%+ font Courier
%%+ font Symbol
%%DocumentSuppliedResources: procset grops 1.09 0
%%Pages: 14
%%PageOrder: Ascend
%%Orientation: Portrait
%%EndComments
%%BeginProlog
%%BeginResource: procset grops 1.09 0
/setpacking where{
pop
currentpacking
true setpacking
}if
/grops 120 dict dup begin
/SC 32 def
/A/show load def
/B{0 SC 3 -1 roll widthshow}bind def
/C{0 exch ashow}bind def
/D{0 exch 0 SC 5 2 roll awidthshow}bind def

------------- END PS ------------------------

And here are the first few lines of THE SAME FILE but converted into PDF format.

------------- Start PDF ---------------------

%PDF-1.4
%âãÏÓ
55 0 obj<</H[556 274]/Linearized 1/E 6280/L 51235/N 14/O 58/T 50088>>
endobj
                     
xref
55 13
0000000016 00000 n
0000000830 00000 n
0000000556 00000 n
0000000910 00000 n
0000001039 00000 n
0000001142 00000 n
0000001750 00000 n
0000002632 00000 n
0000003519 00000 n
0000003705 00000 n
0000003891 00000 n
0000004072 00000 n
0000004148 00000 n
trailer
<</Size 68/Prev 50077/Root 56 0 R/Info 54 0 
R/ID[<f9548518cd5114453b92fcb9c024dc95><bae31d555f2a3b4da609f02cbdd35aa5>]>>
startxref
0
%%EOF
             
57 0 obj<</Length 193/Filter/FlateDecode/L 244/S 195>>stream
xÚb```f``ª‘Œox€—9p€¸3Š¦…l’o·Úzâ€\̪ÒJ
¬\óRÊ+f,-/. *`3÷
-------------- End PDF ---------------------------

As you can see they are VERY DIFFERENT!!!

--
Jay

> -----Original Message-----
> From: Robertson-Ravo, Neil (RX) 
> [mailto:[EMAIL PROTECTED] 
> Sent: 19 April 2005 10:27
> To: CF-Talk
> Subject: RE: macromedia and Adobe?!
> 
> Am I bollox.
> 
> -----Original Message-----
> From: James Smith [mailto:[EMAIL PROTECTED]
> Sent: 19 April 2005 10:31
> To: CF-Talk
> Subject: RE: macromedia and Adobe?!
> 
> You're a Mac user aren't you? 
> 
> > Fit will if I map .PS to adobe acrobat. File extensions are just 
> > mappings.
> 
> > > The extension does not determine the file type directly.  
> > > 
> > > PDF 's **ARE** PostScript files - they are just in PDF 
> format, but 
> > > whatever way you look at it they are PostScript files...
> > 
> > While that is true, I bet if you change your PDF file to a .PS 
> > Illustrator won't open it any more and nor will anything else.  PDF 
> > files are based arround PostScript files and do have some 
> similarities 
> > but they ARE NOT postscript files any more than your Ford 
> Focus is a 
> > Model-T, based on it yes, looks like it, to some degree, but is it? 
> > NOPE!
> 
> 
> 
> 
> 
> 

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