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https://issues.apache.org/jira/browse/PDFBOX-3683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15863956#comment-15863956
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Scott Coldwell commented on PDFBOX-3683:
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I think the behavior for getValueAsString should be changed to return the /Opt
value if it exists instead of the index in the /Opt array. Using the index
seems to be an internal PDF concept. If I'm an author of a PDF and I create
the options for a radio group, I would not expect to get back a number when one
is selected.
> Unexpected behavior when setting value for radio button with /Opts entry
> -------------------------------------------------------------------------
>
> Key: PDFBOX-3683
> URL: https://issues.apache.org/jira/browse/PDFBOX-3683
> Project: PDFBox
> Issue Type: Bug
> Components: AcroForm
> Affects Versions: 2.0.4, 2.0.5, 2.1.0
> Reporter: Maruan Sahyoun
> Fix For: 2.1.0
>
>
> Setting the value for a radio button the behavior is unexpected as when
> setting the value the entries in {{/Opts}} need to be used is there is such
> entry otherwise the names for the {{On}} values in the normal appearances
> entries need to be used. When getting the value always the set names entry is
> returned.
> Also see the discussion at PDFBOX-3656.
> The {{/Opts}} entries shall only be considered when exporting or importing
> the AcroForm fields data.
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