Re: I thought PDF's could just be used to *encapsulate* regular TIFF's?
I.e., in much the same way that they can encapsulate JPEGs, etc.
It can; in fact, when you create a PDF from a scanner, encapsulation is all
that Acrobat is doing, it's the scanner software that determines the format,
which can be tiff, jpeg or some other formats that the scanner software
supports. But by default, it is almost always JPEG.