Re: [Gimp-user] How can I create huge billboard sized files in super high dpi?

[Ofnuts <ofnuts laposte net>]

On 04/25/2012 07:27 PM, Michael Natterer wrote:
> On Tue, 2012-04-24 at 21:44 -0400, Tara Gover wrote:
> > Hi guys,
> >
> >   I am printing super high res images onto fabric. My print guy has instructed me to create my images in 1440 
> > dpi and my fabric is 58 inches wide and about 80 yards long. I need to create ONE image so they can just 
> > print it continuously along the whoe piece of fabric. So I need to create a REALLY BIG image. They have 
> > recommended Adobe Creative Suite, but of course I want to do it with GIMP.
> >
> >   Just today, I installed the latest GIMP, and it doesn't seem to be letting me create even a 58x72 inch 
> > image in 1440 dpi. Is there an add on or a way that I can create huge tiff files in GIMP?.....or do I have to 
> > shell out the cash and get Creative Suite?
> 1440 dpi would mean you print many many lines of pixels on
> each single thread of the fabric. You misunderstood the printer.
> Ask again what resolution they can actually print, and use
> that.

I suspect the printer says 1440DPI because the spec sheet of his own 
printer says so. But on a printer the DPI is the size of the ink dots, 
and you need many inkdots per pixel.

Something which is 58 inches high is seen at such a distance than you 
won't see details below 0.03 inches (about 1/2000th of the height). At 
60PPI the pixels will already be way too small to be visible.