Any way to get better quality rendering ?

[LukyVj]

The question is in the title.

[KevinWang15]

I believe this is going to give you some inspiration:
https://github.com/victorwshuo/dom-to-image/commit/6f75e2ed13ad4512d3001d02a248ce60c4b73c6a

Basically draw a 2x sized image to canvas and then down-scale.
Or you may just use victorwshuo's fork of dom-to-image (tsayen/dom-to-image#172)
It's a rewrite of domvas.

[Heshiyu1996]

I believe this is going to give you some inspiration:
victorwshuo/dom-to-image@6f75e2e

Basically draw a 2x sized image to canvas and then down-scale.
Or you may just use victorwshuo's fork of dom-to-image (tsayen/dom-to-image#172)
It's a rewrite of domvas.

that's good idea! thanks!