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https://issues.apache.org/jira/browse/PDFBOX-5797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17833559#comment-17833559
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Maruan Sahyoun commented on PDFBOX-5797:
----------------------------------------
If I'm not mistaken a /DA entry is specific to a field dictionary and not a
widget dictionary (with both dictionaries optionally being merged into a single
dictionary). This means that the kid is not only a widget but also a field. The
proposed change would overwrite that maybe as intended in that case but maybe
not in others.
> Kid Widget /DA is ignored in setDefaultAppearance() call
> --------------------------------------------------------
>
> Key: PDFBOX-5797
> URL: https://issues.apache.org/jira/browse/PDFBOX-5797
> Project: PDFBox
> Issue Type: Bug
> Components: AcroForm
> Affects Versions: 2.0.31, 3.0.2 PDFBox
> Reporter: Tilman Hausherr
> Priority: Major
> Attachments: seija.pdf
>
>
> See attached SO question, the field has one widget as kid with its own /DA
> entry. PDFBox only sets the field /DA entry but AppearanceGeneratorHelper
> will consider widget /DA entries too, which can result in the problem
> described in the SO question when only the field /DA entry gets changed.
> Test code:
> {code:java}
> PDDocument doc = Loader.loadPDF(new File("seija.pdf"));
> PDAcroForm acroForm = doc.getDocumentCatalog().getAcroForm();
> PDFont font = PDType0Font.load(doc, new
> FileInputStream("c:/windows/fonts/arial.ttf"), false);
> PDResources resources = acroForm.getDefaultResources();
> String fontName = resources.add(font).getName();
> PDVariableText field = (PDVariableText) acroForm.getField("main_text");
> field.setDefaultAppearance(field.getDefaultAppearance()
> .replaceAll("/\\w+", "/"
> + fontName));
> field.setValue("Ahoj světe");
> {code}
> Proposed solution in PDVariableText:
> {code:java}
> public void setDefaultAppearance(String daValue)
> {
> getCOSObject().setString(COSName.DA, daValue);
> if (getCOSObject().containsKey(COSName.KIDS))
> {
> for (PDAnnotationWidget widget : getWidgets())
> {
> COSDictionary widgetDict = widget.getCOSObject();
> if (widgetDict.containsKey(COSName.DA))
> {
> widgetDict.setString(COSName.DA, daValue);
> }
> }
> }
> }
> {code}
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