I'm looking for a way to add a reference to each of the marked points (either red dots or the letters, or generally speaking any place on the image) and have it point to a different page within same document. I tried making it work in word, but with no success. In other words what I want to do is select an area on an image(or in the document in general) that will be a reference(hyperlink?) to another page within the same document. Afterwards it is expected to be created as PDF.
You can embed the image in an
<img...> element on a standard HTML web page, create a clickable HTML imagemap (there are interactive editors for that).
Then turn your HTML page into a PDF, using Chrome in headless mode. This would be a command-line call to Google Chrome.
I haven't done this with imagemaps, yet. Only with standard web pages. But Chrome works very well even with complex CSS stylesheets.