Save custom annotation as blob PDF file to server in ASP MVC or using JS

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Mohammed Zaki

Mar 4, 2019, 12:03:58 PM3/4/19
to PDFTron WebViewer
in our app, we have custom annotation (barcode) as a stamp, anyway, I generate it in runtime, and its showing in the viewer, however when I try to download the file, it showing it as a draft. that's the first issue,
the second issue when I try to save it using this guide (link below)
i get Cannot read property 'exportAnnotations' of null
which came from var xfdfString = annotManager.exportAnnotations();
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