I just recently downloaded Krita, and im wondering what size to set up a new document, like pixel wise, to print nicely on a large canvas? Long story short, im want to do a version if the starry night, and mail it to my sister on a canvas. so i want to make sure the picture is in good quality. If anyone knows great places to get such printed as well, that would be great!
For printing onto paper (and probably canvas) a physical resolution of 300 dpi/ppi gives good results.
So, if you have a physical printing size in mind, when you create a new document, you’d set the Width and Height in inches and then adjust the Resolution to 300 ppi.
That would give you an image with a suitable width and height in pixels.
If you’re using a commercial printing company to do the printing, you’d need to ask them, or read their website, for any requirements they may have for delivered artwork files.
The print they produce will not have the same colour range as you see on your screen due to limitations of the colour printing process. You can see a rough approximation of what you’ll get by printing it out on a good quality domestic colour printer.
You can also do ‘softproofing’ within krita where it will show you what it would look like when printed out.
https://docs.krita.org/en/user_manual/soft_proofing.html#soft-proofing
Printing is complicated.