In the print engine it can and does. (But not anywhere else, you're correct.)
In Print, there's a little box for Resolution. You can enter any value you
want. An excellent article in Digital Photo Pro (immediate past issue, I think,
maybe current) by Jeff Schewe, who is something of a sharpening guru, oops,
Guru <g>. When using Epson printers, he recommends setting resolution at 720
for smaller prints (4x6, 7x10, etc.) and 360 for larger. With Canon printers,
switch numbers to 600 & 300. Sounds flaky, but damned if it doesn't work. I've
tried it and LR does a smash job of making the prints.
Conventional wisdom says you can't rez files in such a promiscuous manner, but
LR experience says differently.
--Bob
On Jan 19, 2012, at 8:25 AM, Piers Hemy wrote:
> If you need to produce a file from the 1400 x 1800 image which will give a 9
> x 12 print at 300dpi, the arithmetic requires that you find some extra
> pixels, and if you are wondering if LR can do that (up-rezzing) the answer,
> I believe is "no".
--
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