Unlike the commercial and paid counterparts, open-source PDF editors don't have formal customer support. You either need to contact the developer, or submit an issue on the relevant GitHub page ...

An open-source component used to display ... documents Sunday and directly linked to the PDF files instead of displaying them in an embedded viewer.

A whopping 97% of applications leverage open-source code, and 90% of companies are applying or using it in some way. GitHub alone had 413 million open-source software (OSS) contributions in 2022.