How to change dpi?

ROOT
1

Hello,

How can I set 72 dpi to 300 dpi of the image?

Thanks,
Summit

2

What image are you speaking about ?

3

Hello Sir,

Sorry, I forgot.

I have attached the image and root.
How can I save root file to TIFF with 300 dpi resolution?

Thanks,
Summit
234.root (15.8 KB)

4

Ok that’s a simple canvas…
I am not aware that TIFF can have different dpi …
may be save it as a PS or PDF file…
Why do you want to define the dpi ?

5

Hello

I was using IEEE graphic checker to check the quality of the image.
So, I needed this.

Thanks,