[Gimp-user] Prit to PDF doesn't save custom size?

[greggys1girl <forums gimpusers com>]

I am trying to create a PDF/X-1a that is exactly the size (dimensions) of the
.xcf file (15x12in.). There are two ways to do this that I have found at this
point. Export does save the correct size, but I can't find a way to change to
the x-1a format, or print to PDF which does save the correct format but doesn't
save the correct size. When printing to PDF I go into Preferences>Adobe PDF
Settings and change the Default Settings to PDF/X-1a and change the Adobe PDF
Page Size to 15x12 (custom created page size). When it prints the PDF ends up as
an 8 1/2 X 11 file.

Two notes:  

1. When I go to Page Setup in Gimp I cannot set a custom page size

2. The only reason I need the X-1a format is because when I export to a standard
PDF the ink density for the black goes above the 240% limit that I need for the
printers. If I could find a way to get the ink density results I need without
saving in the X-1a format it would be just as good.

Thanks for the help!!

-- 
greggys1girl (via www.gimpusers.com/forums)