ImageSize and ImageResolution incompatibility in Export

I produced a plot which has many features on it and want to export it as an image, say png. However when I use Export["test.png", Out[530], ImageSize -> Scaled[0.8]] the resolution is low, when I use Export["test.png", Out[530], ImageResolution-> 600] the plot scales incorrectly the objects on it, and using two function together ignores ImageSize command.

Any way to export a plot in high resolution and scaled correctly like I do in the notebook?

You might try Rasterize in the notebook, with appropriate size and resolution, and then export the raster.

Use Rasterize with RasterSize option instead of ImageResolution, then Export obtained raster image. Also try do not use Scaled specification for ImageSize. Strongly related MMa.SE thread: “Rasterize: ImageResolution option not working properly.”