How to improve PDF to PNG output quality?

By default, PDF is rendered at screen resolution (120 DPI). To increase rendering resolution, please add

{
    "profiles": "{ 'RenderingResolution': 300 }"
}

Zapier

In Zapier, you can add profiles parameter values in the Custom Profiles field.

{ 'RenderingResolution': 300 }

Integromat

The step is the same as in Zapier except you will add the profiles param in the Profiles field.

{ 'RenderingResolution': 300 }