// ScaleEveryImage_2.jsx  
//  
var myInput =prompt("Skalierungsfaktor: ","0.5");  
var myScale = Number(myInput.split(",").join("."));  
 
if (!isNaN(myScale)) { 
	var myPics = app.documents[0].allGraphics;  
	for (onePic = 0; onePic < myPics.length; onePic++) {  
		myPics[onePic].horizontalScale = myPics[onePic].horizontalScale * myScale;  
		myPics[onePic].verticalScale = myPics[onePic].verticalScale * myScale;  
		myPics[onePic].fit(FitOptions.frameToContent);  
	}  
} 
else { 
	alert("Buchstaben schmecken mir nicht!"); 
	exit();	 
}