[QGIS-Developer] Exporting large GeoTIFF files from print composer

Richard Duivenvoorde rdmailings at duif.net
Wed Jul 26 05:23:02 PDT 2017


On 26-07-17 09:35, Neumann, Andreas wrote:
> Hi,
> 
> I would like to export a large format QGIS print composer to a GeoTIFF file.
> 
> Page format is 2.4 x 1.9 m and I would like to export at 300 dpi. It is
> for sending to a copy shop to print out for a trade fair in our province.
> 
> I can successfully export at 270 dpi, but if I go beyond, QGIS tells me
> that I may experience a "memory overflow".
> 
> My machine is 64bit (Win 7) and has 16GB of memory.
> 
> Is this an arbitrary artificial threshold value where QGIS refuses to
> export? Would it potentially work, if the barrier wouldn't exist? Could
> I somehow bypass this barrier?
> 
> Thanks if you have any idea.

Hi Andreas,

Just a shot in the dark, but years ago I was not able to create a A0 pdf
at 300dpi on a Windows (XP?) machine (memory problems), while on a Linux
machine it just worked. Hopefully Windows has changed this, but it is
worth trying?

Regards,

Richard



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