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https://issues.apache.org/jira/browse/PDFBOX-3732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16000328#comment-16000328
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Maruan Sahyoun commented on PDFBOX-3732:
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I did some more investigation. Adobe Reader creates the default entries on the
AcroForm level if there are none regardless of the {{/NeedAppearances}} flag
being set or only when there is a value being entered i.e. opening and saving
such a form has the new entries.
Shall we do the same or do that only when the {{AcroForm}} is accessed which is
more inline with how we currently handle such situations. I'd go for the latter
option. [~tilman] [~ssteiner1] WDYT?
> IllegalArgumentException when refreshing an appearance and no font resources
> are defined
> ----------------------------------------------------------------------------------------
>
> Key: PDFBOX-3732
> URL: https://issues.apache.org/jira/browse/PDFBOX-3732
> Project: PDFBox
> Issue Type: Bug
> Components: AcroForm
> Affects Versions: 2.0.5
> Reporter: simon steiner
> Fix For: 2.0.6, 3.0.0
>
> Attachments: out.pdf, out-reader.pdf, PDFBOX3732-minimal.pdf,
> PDFBOX3732-minimal-reader.pdf, refreshAppearances.patch
>
>
> PDDocument doc = PDDocument.load(new File("out.pdf"));
> doc.getDocumentCatalog().getAcroForm().setNeedAppearances(false);
> doc.getDocumentCatalog().getAcroForm().refreshAppearances();
> doc.save("pdfbox.pdf");
> doc.close();
> Exception in thread "main" java.lang.IllegalArgumentException: /DR is a
> required entry
> at
> org.apache.pdfbox.pdmodel.interactive.form.PDDefaultAppearanceString.<init>(PDDefaultAppearanceString.java:82)
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