for(int i=0;i<functionCount;i++){
id=new String(keys[i]);
if(id.startsWith("<<")){
function=new FunctionObject(1);
ObjectDecoder objectDecoder=new ObjectDecoder(currentPdfFile.getObjectReader());
objectDecoder.readDictionaryAsObject(function,0,keys[i]);
}else{
function=new FunctionObject(id);
currentPdfFile.readObject(function);
}
subFunction[i]=function;
}