Clustering in pdf annotation like google map

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I'm using Pdftron in Flutter to display annotations on a PDF. When I zoom out on the pdf, the annotations become overlapping and inaccessible. As a result, I must cluster the annotation. Is it possible to cluster pdf annotations like Google Maps?

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Branden On

Currently there is no support for clustering annotations in the PDF viewer. This will need to be implemented manually on the viewer side in your app.

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