I have now seen several examples of PDF files (made, I think, by InDesign or by Mac OS X but I can't confirm), which have streams compressed first with DCTDecode (JPEG) then with FlateDecode (ZIP).
Although this is clearly legal in PDF terms, it also seems pointless or counterproductive. Fortunately it doesn't seem to upset any of my code, but having compression reported as ZIP, JPEG does startle both me and our users! Does anyone have any ideas or background on why we are seeing this bizarre compression strategy? Aandi Inston Quite Software
<<attachment: winmail.dat>>
