Hello,
The QPdfLink class was launched in Qt6.4 with support for a link between a region on a page (such as a hyperlink or a search result) and a destination (page, location on the page, and zoom level at which to view it).
https://doc.qt.io/qt-6/qpdflink.html#details
I wouldn't know how to implement it but the functionality of having the links within the pdf and all work in Acrobat would be much appreciated