if you print a document from GroupDocs.Annotation (your Groupdocs.Demo.Annotation.CustomGUI sample project) in the Microsoft Edge Browser, it prints an empty page.
It prints the whole website instead of the document if GroupDocs.Annotation is placed inside an iframe.
Your online demo:
at least opens the document in a popup to be able to print it.
there is also an issue with the printing without annotations in all browsers.
The document is not printed in full size (like the used printing in other viewers) and its layout is quite the same as printing with annotations (document shrinked to ~40%).
There is also annotation stuff added to the non-annotation print layout.
I see there is a popup now to show just the document. You can print that, but it’s not the default printing behavior of other apps.
Is this the final solution or will there be a more standard one within the next releases?