Class PdfUA2FormChecker

java.lang.Object

com.itextpdf.pdfua.checkers.utils.ua2.PdfUA2FormChecker

public final class PdfUA2FormChecker
extends Object

Class that provides methods for checking PDF/UA-2 compliance of interactive form fields.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PdfUA2FormChecker.PdfUA2FormTagHandler	Handler for checking form field elements in the tag tree.

Field Summary

Fields

Modifier and Type	Field	Description
private final PdfUAValidationContext	context

Constructor Summary

Constructors

Constructor	Description
PdfUA2FormChecker(PdfUAValidationContext validationContext)	Creates a new PdfUA2FormChecker instance.

Method Summary

Modifier and Type	Method	Description
void	checkFormFields(PdfDictionary form)	Verifies the conformity of the document Acroform dictionary.
void	checkFormStructElement(IStructureNode elem)	Checks "Form" structure element.
private static void	checkTextField(PdfDictionary fieldDic)
private void	checkWidget(PdfDictionary fieldDic)
void	checkWidgetAnnotations(PdfDocument document)	Verifies the conformity of the widget annotation present in the document.
private static void	checkWidgetKids(IStructureNode form)	Checks that Form structure element contains at most one widget annotation.
private static PdfObject	getValueFromParent(PdfDictionary field)
private static boolean	isWidget(IStructureNode node)
private boolean	isWidgetLabelPresent(IStructureNode widget)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

context

private final PdfUAValidationContext context

Constructor Details

PdfUA2FormChecker

public PdfUA2FormChecker(PdfUAValidationContext validationContext)

Creates a new PdfUA2FormChecker instance.

Parameters:

validationContext - the validation context

Method Details

checkWidgetAnnotations

public void checkWidgetAnnotations(PdfDocument document)

Verifies the conformity of the widget annotation present in the document.

Checks that each widget annotation is either Form structure element or an Artifact; if label for a widget annotation is not present or an additional action (AA) entry is present, Contents entry is provided.

Parameters:

document - the PdfDocument to check widgets from

checkFormFields

public void checkFormFields(PdfDictionary form)

Verifies the conformity of the document Acroform dictionary.

Checks that each widget annotation is either Form structure element or an Artifact; if label for a widget annotation is not present or an additional action (AA) entry is present, Contents entry is provided; text field RV and V values are textually equal.

Parameters:

form - the form PdfDictionary to be checked

checkFormStructElement

public void checkFormStructElement(IStructureNode elem)

Checks "Form" structure element.

Parameters:

elem - structure element to check

Throws:

PdfUAConformanceException - if document has incorrect tag structure for Form tag

checkWidgetKids

private static void checkWidgetKids(IStructureNode form)

Checks that Form structure element contains at most one widget annotation.

Parameters:

form - Form structure element to check

Throws:

PdfUAConformanceException - if Form tag has incorrect kids

isWidget

private static boolean isWidget(IStructureNode node)

getValueFromParent

private static PdfObject getValueFromParent(PdfDictionary field)

checkTextField

private static void checkTextField(PdfDictionary fieldDic)

checkWidget

private void checkWidget(PdfDictionary fieldDic)

isWidgetLabelPresent

private boolean isWidgetLabelPresent(IStructureNode widget)