set-appropriate-pixel-resolution-in-gimp.txt

Physical display pixels/in. = # of pixels on diagonal / diagonal size of monitor

e.g., Phililps PHL 346B1C is a 34" ultra-wide at 3440x1440

PowerShell: 

> $d = 3440*3440 + 1440*1440
> [Math]::Sqrt($d)    # Pixels on the diagnoal
> [Math]::Sqrt($d)/34   # Pixels/in., matches manufacturer claim of 110 ppi.

Citrix VM on same monitor:

System Information | Components | Display --> "VMware SVGA 3D", 1920 x 853 x 1 Hz (???)

So, PPI = [Math]::Sqrt( 1920*1920 + 853*853) / 34 (same physical monitor size) --> 62 ppi

But I have absolutely no idea how Citrix is scaling this, b/c setting ppi to 62 gives a wrong result.

See https://www.citrix.com/blogs/2018/01/09/making-sense-of-high-resolution-displays-and-dpi-with-citrix-graphics-remoting/
if you really want to have your eyes glazed over.

So, I just used a PPI of 96 pixels/inch and that seems to work well (for my particular environment).

In Gimp, after editing a screenshot generated in citrix and pasted into a local Gimp session on my laptop:

Image | Print size (a.k.a. "print resolution")

Then you can save and export.