Is DPI limit in MagickImage.write?

[sihj2002]

I use Magick.net now. But I have a problem with fix Density.

       string filepath = "C:/.../.tif";

        MagickImage img = new MagickImage(filepath);

        img.Density = new Density(720 , 360, DensityUnit.PixelsPerInch);

        img.Depth = 1;

        img.Write(Path.GetDirectoryName(filepath) + "/" + Path.GetFileNameWithoutExtension(filepath) + "test.tif");'

Code goes well but Density change like

img.Denstiy = new Density(1800,360,DensityUnit.PixelsPerInch);

I get wrong DPI. Like this.

I want to fix DPI (1800x360) but I get (1800x1800).

How can I solve this problem?

[dlemstra]

What are you using to read that information?

[sihj2002]

I read DPI information like below.

[sihj2002]

When I use magick.net to read DPI information, it works well. There are 3 tif files.

It is weird when I want see an image information in desktop.
Below picture is showing DPI setting is changed.
I fix dpi for each picture. ( 1440x360 , 1441x360 , 1800x360)

I don't know why vertical resolution is different with I want.

I want to get proper DPI information when I open the properties window with right click on the desktop.

Do you have idea that I can see correct DPI in properties window?

[dlemstra]

Maybe this is a bug in the windows file viewer? I suspect that when you make the value to low (difference between horizontal and vertical) it will display it differently from how it is stored in the file. No idea why this is happening though.

[sihj2002]

Okay.. thank you for kind answer.