Add Stirling-PDF

[Lord-ZuzurNC]

What is the vendor's name?
Stirling Tools on their Stirling-PDF tools.

What is the vendor's pricing site?
https://www.stirlingpdf.com/pricing

What is the base pricing? Use the lowest tier that looks sane for a small business customer, not free or personal tiers.
Tool is free. Only SSO and "advanced user access control" is to be paid.

What is the minimum pricing for SSO support?
$12 per user/month

Does this pricing info come from a quote or other non-public source?
Nope, it is public.

Are there any caveats we should list in the footnotes?
You may consider this request non-valid as tool is free. But as you say on your site: SSO shouldn't be something we need to pay more for and $12/user/month is more than zero. (still I love Stirling-PDF)