Combining pdf files in Preview not saved
I'm trying to combine screenshots into one pdf file. I clicked on the side bar button and dragged the files I wanted into the side bar and then saved this as a pdf file. It showed it as saving all the pages but when I closed it and reopened it, it had only one file. (It was now opened in Adobe Reader). Why is it not saving it as a combined file?
Thanks,
Kathy
iMac, Mac OS X (10.5.8), 2.4 GHz Intel Core 2 Duo