I favour Johannes' previous suggestion of having "A4" use the imageable area for duplex-enabled printing and "A4 Single-Sided" (or something) having the larger imageable area for when duplexing is not in use.
That way the "default" and obvious page size of A4 will allow duplexing.
Here are some bugs and usability problems triggered by the current behaviour:
https:/ /bugzilla. redhat. com/show_ bug.cgi? id=540995 /bugzilla. redhat. com/show_ bug.cgi? id=538133
https:/
I favour Johannes' previous suggestion of having "A4" use the imageable area for duplex-enabled printing and "A4 Single-Sided" (or something) having the larger imageable area for when duplexing is not in use.
That way the "default" and obvious page size of A4 will allow duplexing.