John Hewson created PDFBOX-1982:
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Summary: Standardise AcroForm Fields
Key: PDFBOX-1982
URL: https://issues.apache.org/jira/browse/PDFBOX-1982
Project: PDFBox
Issue Type: Improvement
Reporter: John Hewson
While working on adding the patch in PDFBOX-1847 I noticed that the digital
signature form field, PDSignature is deprecated, having been replaced by
PDSignatureField.
Currently some aspects of the fields do not correspond with the PDF
specification, in particular the hierarchy of the fields and their naming.
There are currently 43 open issues for the AcroForm component and no issues
have been closed since 2011, so I've attempted some basic refactoring to give
us a clean slate for adding new features and fixing old bugs.
Here's the current hierarchy of fields in PDFBox:
PDField
PDChoiceButton
PDCheckbox
PDRadioCollection
PDPushButton
PDSignatureField
PDUnknownField
PDVariableText
PDChoiceField
PDTextbox
And here's the actual hierarchy from the PDF specification:
Field
Button
Check Box
Radio Button
Pushbutton
Text
Choice
List Box
Combo Box
Signature
Note that PDPushButton is in the wrong place in the hierarchy and List Box and
Combo Box are missing.
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