[Qgis-user] (no subject) - Compressing Raster

[Alex Mandel]

On 07/28/2014 07:03 AM, Peter Versteeg wrote:
> hello,
> 
> when i right click my raster i do a save as. there i set the resolution and
> compress (see png). tbh i do not know any GDAL tools.
> 
> 
> 
> greetings Peter
> 
> 
> [image: Inline afbeelding 1]
> 
> 

Did you try the High compression (In this case it's Deflate) option in
the Save As dialog?
http://linfiniti.com/2011/05/gdal-efficiency-of-various-compression-algorithms/

If that still isn't enough use GDAL Translate found on the Raster menu
under Conversion. There you will be able to set all the possible options.

FYI, if you want LZW specifically you need to pick one of the
compression options, like low, and then edit the Value from Packbits to LZW.

Thanks,
Alex