com.itextpdf.pdfa.checker

Class PdfA1Checker

java.lang.Object

com.itextpdf.pdfa.checker.PdfAChecker

com.itextpdf.pdfa.checker.PdfA1Checker

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

PdfA2Checker

public class PdfA1Checker
extends PdfAChecker

PdfA1Checker defines the requirements of the PDF/A-1 standard and contains method implementations from the abstract PdfAChecker class.

The specification implemented by this class is ISO 19005-1

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected static Set<PdfName>	allowedNamedActions
protected static Set<PdfName>	allowedRenderingIntents
protected static Set<PdfName>	contentAnnotations
protected static Set<PdfName>	forbiddenActions
protected static Set<PdfName>	forbiddenAnnotations

Fields inherited from class com.itextpdf.pdfa.checker.PdfAChecker

checkedObjects, checkedObjectsColorspace, cmykIsUsed, conformanceLevel, grayIsUsed, gsStackDepth, ICC_COLOR_SPACE_CMYK, ICC_COLOR_SPACE_GRAY, ICC_COLOR_SPACE_RGB, ICC_DEVICE_CLASS_MONITOR_PROFILE, ICC_DEVICE_CLASS_OUTPUT_PROFILE, LOGGER, maxGsStackDepth, pdfAOutputIntentColorSpace, rgbIsUsed

Constructor Summary

Constructors

Constructor and Description
PdfA1Checker(PdfAConformanceLevel conformanceLevel) Creates a PdfA1Checker with the required conformance level

Method Summary

Modifier and Type	Method and Description
protected void	checkAction(PdfDictionary action)
protected void	checkAnnotation(PdfDictionary annotDic)
void	checkCanvasStack(char stackOperation) This method checks compliance with the graphics state architectural limitation, explained by PdfAChecker.maxGsStackDepth.
protected void	checkCatalogValidEntries(PdfDictionary catalogDict)
void	checkColor(Color color, PdfDictionary currentColorSpaces, Boolean fill) This method checks compliance with the color restrictions imposed by the available color spaces in the document.
void	checkColorSpace(PdfColorSpace colorSpace, PdfDictionary currentColorSpaces, boolean checkAlternate, Boolean fill) This method performs a range of checks on the given color space, depending on the type and properties of that color space.
protected void	checkColorsUsages()
void	checkExtGState(CanvasGraphicsState extGState) Performs a number of checks on the graphics state, among others ISO 19005-1 section 6.2.8 and 6.4 and ISO 19005-2 section 6.2.5 and 6.2.10.
protected void	checkFileSpec(PdfDictionary fileSpec)
void	checkFont(PdfFont pdfFont) Performs a number of checks on the font.
protected void	checkForm(PdfDictionary form)
protected void	checkFormXObject(PdfStream form)
protected void	checkImage(PdfStream image, PdfDictionary currentColorSpaces)
void	checkInlineImage(PdfStream inlineImage, PdfDictionary currentColorSpaces) This method checks compliance with the inline image restrictions in the PDF/A specs, specifically filter parameters.
protected void	checkLogicalStructure(PdfDictionary catalog)
protected void	checkMetaData(PdfDictionary catalog)
protected void	checkNonSymbolicTrueTypeFont(PdfTrueTypeFont trueTypeFont)
protected void	checkOutputIntents(PdfDictionary catalog)
protected void	checkPageObject(PdfDictionary pageDict, PdfDictionary pageResources)
protected void	checkPageSize(PdfDictionary page)
protected void	checkPdfNumber(PdfNumber number)
protected void	checkPdfStream(PdfStream stream)
protected void	checkPdfString(PdfString string)
void	checkRenderingIntent(PdfName intent) Checks whether the rendering intent of the document is within the allowed range of intents.
protected void	checkSymbolicTrueTypeFont(PdfTrueTypeFont trueTypeFont)
protected void	checkTrailer(PdfDictionary trailer)
protected Set<PdfName>	getAllowedNamedActions()
protected Set<PdfName>	getForbiddenActions()
protected PdfArray	getFormFields(PdfArray array)
protected double	getMaxRealValue()
protected int	getMaxStringLength()

Methods inherited from class com.itextpdf.pdfa.checker.PdfAChecker

checkDocument, checkFlag, checkPdfObject, checkResources, checkResourcesOfAppearanceStreams, checkSinglePage, checkStructure, checkTagStructureElement, getConformanceLevel, isAlreadyChecked, objectIsChecked

Methods inherited from class java.lang.Object

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

Field Detail

forbiddenAnnotations

protected static final Set<PdfName> forbiddenAnnotations

contentAnnotations

protected static final Set<PdfName> contentAnnotations

forbiddenActions

protected static final Set<PdfName> forbiddenActions

allowedNamedActions

protected static final Set<PdfName> allowedNamedActions

allowedRenderingIntents

protected static final Set<PdfName> allowedRenderingIntents

Constructor Detail

PdfA1Checker

public PdfA1Checker(PdfAConformanceLevel conformanceLevel)

Creates a PdfA1Checker with the required conformance level

Parameters:

conformanceLevel - the required conformance level, a or b

Method Detail

checkCanvasStack

public void checkCanvasStack(char stackOperation)

Description copied from class: PdfAChecker

This method checks compliance with the graphics state architectural limitation, explained by PdfAChecker.maxGsStackDepth.

Specified by:

checkCanvasStack in class PdfAChecker

Parameters:

stackOperation - the operation to check the graphics state counter for

checkInlineImage

public void checkInlineImage(PdfStream inlineImage,
                             PdfDictionary currentColorSpaces)

Description copied from class: PdfAChecker

This method checks compliance with the inline image restrictions in the PDF/A specs, specifically filter parameters.

Specified by:

checkInlineImage in class PdfAChecker

Parameters:

inlineImage - a PdfStream containing the inline image

currentColorSpaces - a PdfDictionary containing the color spaces used in the document

checkColor

public void checkColor(Color color,
                       PdfDictionary currentColorSpaces,
                       Boolean fill)

Description copied from class: PdfAChecker

This method checks compliance with the color restrictions imposed by the available color spaces in the document.

Specified by:

checkColor in class PdfAChecker

Parameters:

color - the color to check

currentColorSpaces - a PdfDictionary containing the color spaces used in the document

fill - whether the color is used for fill or stroke operations

checkColorSpace

public void checkColorSpace(PdfColorSpace colorSpace,
                            PdfDictionary currentColorSpaces,
                            boolean checkAlternate,
                            Boolean fill)

Description copied from class: PdfAChecker

This method performs a range of checks on the given color space, depending on the type and properties of that color space.

Specified by:

checkColorSpace in class PdfAChecker

Parameters:

colorSpace - the color space to check

currentColorSpaces - a PdfDictionary containing the color spaces used in the document

checkAlternate - whether or not to also check the parent color space

fill - whether the color space is used for fill or stroke operations

getForbiddenActions

protected Set<PdfName> getForbiddenActions()

Specified by:

getForbiddenActions in class PdfAChecker

getAllowedNamedActions

protected Set<PdfName> getAllowedNamedActions()

Specified by:

getAllowedNamedActions in class PdfAChecker

checkColorsUsages

protected void checkColorsUsages()

Specified by:

checkColorsUsages in class PdfAChecker

checkExtGState

public void checkExtGState(CanvasGraphicsState extGState)

Description copied from class: PdfAChecker

Performs a number of checks on the graphics state, among others ISO 19005-1 section 6.2.8 and 6.4 and ISO 19005-2 section 6.2.5 and 6.2.10.

Specified by:

checkExtGState in class PdfAChecker

Parameters:

extGState - the graphics state to be checked

checkRenderingIntent

public void checkRenderingIntent(PdfName intent)

Description copied from class: PdfAChecker

Checks whether the rendering intent of the document is within the allowed range of intents. This is defined in ISO 19005-1 section 6.2.9, and unchanged in newer generations of the PDF/A specification.

Specified by:

checkRenderingIntent in class PdfAChecker

Parameters:

intent - the intent to be analyzed

checkFont

public void checkFont(PdfFont pdfFont)

Description copied from class: PdfAChecker

Performs a number of checks on the font. See ISO 19005-1 section 6.3, ISO 19005-2 and ISO 19005-3 section 6.2.11. Be aware that not all constraints defined in the ISO are checked in this method, for most of them we consider that iText always creates valid fonts.

Overrides:

checkFont in class PdfAChecker

Parameters:

pdfFont - font to be checked

checkNonSymbolicTrueTypeFont

protected void checkNonSymbolicTrueTypeFont(PdfTrueTypeFont trueTypeFont)

Overrides:

checkNonSymbolicTrueTypeFont in class PdfAChecker

checkSymbolicTrueTypeFont

protected void checkSymbolicTrueTypeFont(PdfTrueTypeFont trueTypeFont)

Overrides:

checkSymbolicTrueTypeFont in class PdfAChecker

checkImage

protected void checkImage(PdfStream image,
                          PdfDictionary currentColorSpaces)

Specified by:

checkImage in class PdfAChecker

checkFormXObject

protected void checkFormXObject(PdfStream form)

Specified by:

checkFormXObject in class PdfAChecker

checkLogicalStructure

protected void checkLogicalStructure(PdfDictionary catalog)

Specified by:

checkLogicalStructure in class PdfAChecker

checkMetaData

protected void checkMetaData(PdfDictionary catalog)

Specified by:

checkMetaData in class PdfAChecker

checkOutputIntents

protected void checkOutputIntents(PdfDictionary catalog)

Specified by:

checkOutputIntents in class PdfAChecker

checkPdfNumber

protected void checkPdfNumber(PdfNumber number)

Specified by:

checkPdfNumber in class PdfAChecker

getMaxRealValue

protected double getMaxRealValue()

checkPdfStream

protected void checkPdfStream(PdfStream stream)

Specified by:

checkPdfStream in class PdfAChecker

checkPdfString

protected void checkPdfString(PdfString string)

Specified by:

checkPdfString in class PdfAChecker

getMaxStringLength

protected int getMaxStringLength()

checkPageSize

protected void checkPageSize(PdfDictionary page)

Specified by:

checkPageSize in class PdfAChecker

checkFileSpec

protected void checkFileSpec(PdfDictionary fileSpec)

Specified by:

checkFileSpec in class PdfAChecker

checkAnnotation

protected void checkAnnotation(PdfDictionary annotDic)

Specified by:

checkAnnotation in class PdfAChecker

checkForm

protected void checkForm(PdfDictionary form)

Specified by:

checkForm in class PdfAChecker

checkAction

protected void checkAction(PdfDictionary action)

Specified by:

checkAction in class PdfAChecker

checkCatalogValidEntries

protected void checkCatalogValidEntries(PdfDictionary catalogDict)

Specified by:

checkCatalogValidEntries in class PdfAChecker

checkPageObject

protected void checkPageObject(PdfDictionary pageDict,
                               PdfDictionary pageResources)

Specified by:

checkPageObject in class PdfAChecker

checkTrailer

protected void checkTrailer(PdfDictionary trailer)

Specified by:

checkTrailer in class PdfAChecker

getFormFields

protected PdfArray getFormFields(PdfArray array)