Bug report #3980
Print composer produces downsampled images regardless of DPI
|Affected QGIS version:||master||Regression?:||No|
|Operating System:||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:||invalid|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||13976|
The Print Composer declines to produce the best quality image at a given DPI.
Attached are excerpts from two runs of the Print Composer, the only difference that one was run at 300 DPI, and one was run at 600 DPI. Both times I exported to a PNG.
The 600 DPI PNG is 16.3 MB, and the 300 DPI PNG is 7.2 MB.
What should happen: Print Composer produces the best quality image available to a given DPI.
I've also attached an example of what happens on the same area when I do File > Save as Image from within QGIS.