[OS X TeX] corrupted tex file

[Reich Ingo]

Hi,
a beamer source file of mine seems to be corrupted all of  a sudden,  
see the 30 lines or so  of the file below. Does anybody have an idea  
of how to recover the data?
Best, Ingo


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  file: einfuehrung.tex, beamer class, I ran pdfnup on  
einfuerung.beamer.tex to create a handout
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

H /N /Border [0 0 0] /Subtype /Link /Dest (Navigation46) cvn H.B /ANN  
pdfmark endéü1Ô	color popéééééí ∂
Ô	color  
popééí ∂
Ô	color popéí ∂
Ô	color  
popééççó ∂
Ôcolor push  BlueÔcolor push   
BlueçÑ ¶© ∂
éÔ	color popçÔcolor push gray 0ççç 
°Ôcolor push gray 1¶ççüı¿Pççü¸ÿ∏Ôcolor push gray  
1§
ì§Ô	color pop°éééééìÔ	color popééìÔ	color popéìÔ	 
color popééí
l2Ô	color popÔ	color popéééééééí
3J5Ô	color  
popéé† Ïb∂ççë‘.…†ˇùJÔcolor push gray 0Ôcolor  
push  Blueü
·çççë„åÔcolor push gray 1Ôcolor push gray  
1çÑ 
·
l2éÔ	color popçÔcolor push  Blueçççü·ÄÔcolor  
push   
Blueü 
 
)dçë 
 
â1 
¡Derñ 
ÛkGrundauauìeinesìSatzö›Xesì(Nebensatzòesê»é)ééí
l2Ô	 
color popééí
l2Ô	color popéí
l2Ô	color popéééÔ	color popÔ	 
color popü,ZçëÌÅwÔcolor push gray 1∆(ê’◊dassêÿy)Ô	 
color popçççççççë"
ãÔcolor push gray 1æVê¶hGçë| 
fi∆<>éÔ	color popééééééë(êÄüÛz‰Ú  
à" tx at Dict begin  
STP newpath 0.6 SLW 1  setgray  /ArrowA { BeginArrow 1.  1.  scale 1  
setlinecap 0 0 moveto 0 0.1 L stroke 0 0 moveto  EndArrow  moveto }  
def /ArrowB { BeginArrow 1.  1.  scale 1 setlinecap 0 0 moveto 0 0.1 L  
stroke 0 0 moveto  EndArrow  } def [ -40.42105 -31.59999 0.0  
-19.59999  /Lineto /lineto load def false Line  gsave 0.6 SLW 1   
setgray 0 setlinecap stroke  grestore end ççü,
µççççë— 
díÔcolor push gray 1æPêıuGÔ	color popééééééÔ“" tx at Dict  
begin STP newpath 0.6 SLW 1  setgray  [ -40.42105 -51.19998 -25.44987  
-65.42635 -55.39221 -65.42635  /Lineto /lineto load def false Polygon   
gsave 0.6 SLW 1  setgray 0 setlinecap stroke  grestore end  
ççüMÚAççççë»õòÔcolor push gray 1h 0.6 SLW 0  setgray   
[ 46.32526 -114.39996 63.84909 -128.62633 28.80144 -128.62633  / 
Lineto /lineto load def false Polygon  gsave 0.6 SLW 0  setgray 0  
setlinecap stroke  grestore end çç† ç%sççççë
Õ 
+æKêËIindernééééééÚ  
å" tx at Dict begin STP newpath 0.6 SLW  
0  setgray  /ArrowA { BeginArrow 1.  1.  scale 1 setlinecap 0 0 moveto  
0 0.1 L stroke 0 0 moveto  EndArrow  moveto } def /ArrowB { BeginArrow  
1.  1.  scale 1 setlinecap 0 0 moveto 0 0.1 L stroke 0 0 moveto   
EndArrow  }

etc. etc. etc.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%