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https://issues.apache.org/jira/browse/PDFBOX-5831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17850103#comment-17850103
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Maruan Sahyoun commented on PDFBOX-5831:
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assigned to me - can work on it this weekend
> Radio button can't be set
> -------------------------
>
> Key: PDFBOX-5831
> URL: https://issues.apache.org/jira/browse/PDFBOX-5831
> Project: PDFBox
> Issue Type: Bug
> Components: AcroForm
> Affects Versions: 3.0.2 PDFBox
> Reporter: Tilman Hausherr
> Assignee: Maruan Sahyoun
> Priority: Major
> Attachments: AU_Erklaerung_final-lower.pdf,
> AU_Erklaerung_final-upper.pdf, AU_Erklaerung_final.pdf
>
>
> It is impossible to set the upper radio button with this code, the lower is
> set. With "2" also.
> {code:java}
> String filename = "..../AU_Erklaerung_finalAB.pdf";
> PDDocument pdfDocument = Loader.loadPDF(new File(filename));
> PDAcroForm acroForm = pdfDocument.getDocumentCatalog().getAcroForm();
> acroForm.getField("Formular1[0].Seite1[0].TF_P[0].Optionsfeldliste[0]").setValue("1");
> pdfDocument.save(filename + System.currentTimeMillis() + ".pdf");
> {code}
> Attached: the original file from the user, plus two files where it was set
> with Adobe Reader.
> What really happens:
> The values from the /Opt entry are 1 and 2, the values at the dictionary
> level are 0 and 1. Our software somehow gets confused when 1 is used because
> it appears in both: when the value "1" is set, then PDButton.updateByOption()
> is called twice (!!!), once with value 1 and once with 2.
> The same effect happens with {{setValue(0)}} (integer parameter) if we cast
> the field to a PDRadioButton.
> I changed the PDF so that the /Opt entry has "A" and "B" instead of "1" and
> "2" and then it works. (However that can't be changed with Adobe Reader)
> The Adobe filled files have 0 and 1 as /V value, we set 1 and 2 as /V value.
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