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How to create a JavaScript action to open the attachments panel?

Is there an action which opens the attachments panel? Not right away, but when the user presses some text?

I know the writer.setViewerPreferences(PdfWriter.PageModeUseAttachments) but I don't want it to open right away.


Posted on StackOverflow on Sep 12, 2012 by Michael A

This can be done using a JavaScript action:

Chunk c = new Chunk("Show / Hide attachment panel");
    "app.execMenuItem('ShowHideFileAttachment');", writer));
document.add(new Paragraph(c));

Note that this won't work on all viewers (app = Adobe Reader) and it won't work if people disable Javascript.

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