Chris Newhouse created PDFBOX-5297:
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Summary: class org.apache.pdfbox.cos.COSName cannot be cast to
class org.apache.pdfbox.cos.COSString
Key: PDFBOX-5297
URL: https://issues.apache.org/jira/browse/PDFBOX-5297
Project: PDFBox
Issue Type: Bug
Components: AcroForm
Affects Versions: 2.0.24
Reporter: Chris Newhouse
A customer provided us with a PDF that contains an AcroForm and has some of the
data filled in. There are various ways to trigger the error, but here's a
stacktrace:
{code:java}
class org.apache.pdfbox.cos.COSName cannot be cast to class
org.apache.pdfbox.cos.COSString (org.apache.pdfbox.cos.COSName and
org.apache.pdfbox.cos.COSString are in unnamed module of loader 'app')
at
org.apache.pdfbox.pdmodel.interactive.form.PDVariableText.getDefaultAppearanceString(PDVariableText.java:91)
at
org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelper.<init>(AppearanceGeneratorHelper.java:114)
at
org.apache.pdfbox.pdmodel.interactive.form.PDTextField.constructAppearances(PDTextField.java:263)
at
org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm.refreshAppearances(PDAcroForm.java:331)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566){code}
The PDF contains sensitive user information, so I cannot post it here publicly,
but I'd be willing to submit it to a private upload area. When I use an editor
to remove/change the sensitive data, the problem goes away or sprouts up as a
different error (related to fonts).
Here is a little bit of metadata I can provide right now:
{code:java}
{
"Author": "SE:W:CAR:MP",
"CreationDate": "D:20211012165530Z00'00'",
"Creator": "Adobe LiveCycle Designer ES 9.0",
"Keywords": "Fillable",
"ModDate": "D:20211012165530Z00'00'",
"Producer": "macOS Version 10.15.7 (Build 19H1417) Quartz PDFContext",
"Subject": "Request for Taxpayer Identification Number and Certification",
"Title": "Form W-9 (Rev. October 2018)"
}{code}
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