Select short/long edge duplex automatically
I am not sure where this request belongs, if it should be filed under CUPS or cups-filters or here.
Generally I want documents which are in portrait mode to be printed duplex with "Two-sided" "Long Edge (Standard)" in Page Setup. Documents displayed in landscape orientation should be printed "Short Edge (Flip)".
Although Evince diplays documents in the correct orientation, so that I'm never looking at sideways text on my screen, nevertheless, when printing, the selection of the duplex mode is not automatic. But it is remembered between documents. Thus I often have to throw away documents that I've printed with the wrong duplex mode, if I forget that the previous document had a different orientation.
I would propose adding a fourth option under the Duplex menu, instead of just "One Sided", "Long Edge" and "Short Edge", we should have something like "Auto" which uses "Long Edge" for portrait documents and "Short Edge" for landscape. Whether someone is left or right handed, I think they would prefer to turn pages side-to-side rather than up-and-down - so it is probably enough to have a single "Auto" option accomplishing this.
Thank you!