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kotlinlang

I am developing an Android PDF reader (That is Read Only).
I have external annotations that are defined using a proprietary format as the pdf files they are associated with are consumed both in a web and desktop application.
these web and desktop applications can add, remove, &amp; update annotations where the android companion app can only display annotations.
the annotations are held outside the pdf document with the annotations colour, type, dimensions and location all being defined in a proprietary format.
I would like to be able to import these annotations into their associated pdf document via XFDF format file or a string that contains XFDF formate definitions for annotations.

is there a Kotlin library specifically for creating XFDF/FDF format data