Class PdfASmartCopy

java.lang.Object

com.itextpdf.text.DocWriter

com.itextpdf.text.pdf.PdfWriter

com.itextpdf.text.pdf.PdfCopy

com.itextpdf.text.pdf.PdfACopy

com.itextpdf.text.pdf.PdfASmartCopy

All Implemented Interfaces:

DocListener, ElementListener, PdfAnnotations, PdfDocumentActions, PdfEncryptionSettings, PdfPageActions, PdfRunDirection, PdfVersion, PdfViewerPreferences, EventListener

public class PdfASmartCopy
extends PdfACopy

PdfASmartCopy has the same functionality as PdfACopy, but when resources (such as fonts, images,...) are encountered, a reference to these resources is saved in a cache, so that they can be reused. This requires more memory, but reduces the file size of the resulting PDF document.

Nested Class Summary

Nested classes/interfaces inherited from class PdfCopy

PdfCopy.ImportedPage, PdfCopy.IndirectReferences, PdfCopy.PageStamp, PdfCopy.StampContent

Nested classes/interfaces inherited from class PdfWriter

PdfWriter.PdfBody, PdfWriter.PdfTrailer

Field Summary

Fields

Modifier and Type	Field	Description
private static final Logger	LOGGER
private final HashMap<RefKey,Integer>	serialized
private HashMap<PdfSmartCopy.ByteStore, PdfIndirectReference>	streamMap	the cache with the streams and references.

Fields inherited from class PdfACopy

COUNTER

Fields inherited from class PdfCopy

disableIndirects, fieldArray, fieldKeys, fields, fieldTemplates, importedPages, indirectMap, indirectObjects, indirects, mergeFields, namePtr, parentObjects, reader, savedObjects, structTreeRootReference, updateRootKids, widgetKeys

Fields inherited from class PdfWriter

ALLOW_ASSEMBLY, ALLOW_COPY, ALLOW_DEGRADED_PRINTING, ALLOW_FILL_IN, ALLOW_MODIFY_ANNOTATIONS, ALLOW_MODIFY_CONTENTS, ALLOW_PRINTING, ALLOW_SCREENREADERS, AllowAssembly, AllowCopy, AllowDegradedPrinting, AllowFillIn, AllowModifyAnnotations, AllowModifyContents, AllowPrinting, AllowScreenReaders, body, CenterWindow, colorNumber, colorProfile, compressionLevel, crypto, currentPageNumber, currentPdfReaderInstance, defaultColorspace, DID_PRINT, DID_SAVE, directContent, directContentUnder, DirectionL2R, DirectionR2L, DisplayDocTitle, DO_NOT_ENCRYPT_METADATA, DOCUMENT_CLOSE, documentColors, documentExtGState, documentFonts, documentOCG, documentOCGorder, documentPatterns, documentProperties, documentShadingPatterns, documentShadings, documentSpotPatterns, EMBEDDED_FILES_ONLY, ENCRYPTION_AES_128, ENCRYPTION_AES_256, ENCRYPTION_MASK, extraCatalog, FitWindow, fontNumber, formXObjects, formXObjectsCounter, fullCompression, GENERATION_MAX, group, HideMenubar, HideToolbar, HideWindowUI, imageDictionary, JBIG2Globals, markAll, markInlineElementsOnly, newBookmarks, NO_SPACE_CHAR_RATIO, NonFullScreenPageModeUseNone, NonFullScreenPageModeUseOC, NonFullScreenPageModeUseOutlines, NonFullScreenPageModeUseThumbs, OCGLocked, OCGRadioGroup, OCProperties, originalFileID, PAGE_CLOSE, PAGE_OPEN, pageDictEntries, PageLayoutOneColumn, PageLayoutSinglePage, PageLayoutTwoColumnLeft, PageLayoutTwoColumnRight, PageLayoutTwoPageLeft, PageLayoutTwoPageRight, PageModeFullScreen, PageModeUseAttachments, PageModeUseNone, PageModeUseOC, PageModeUseOutlines, PageModeUseThumbs, pageReferences, patternColorspaceCMYK, patternColorspaceGRAY, patternColorspaceRGB, patternNumber, pdf, pdf_version, PDF_VERSION_1_2, PDF_VERSION_1_3, PDF_VERSION_1_4, PDF_VERSION_1_5, PDF_VERSION_1_6, PDF_VERSION_1_7, pdfIsoConformance, PDFX1A2001, PDFX32002, PDFXNONE, prevxref, PrintScalingNone, readerInstances, root, RUN_DIRECTION_DEFAULT, RUN_DIRECTION_LTR, RUN_DIRECTION_NO_BIDI, RUN_DIRECTION_RTL, runDirection, SIGNATURE_APPEND_ONLY, SIGNATURE_EXISTS, SPACE_CHAR_RATIO_DEFAULT, STANDARD_ENCRYPTION_128, STANDARD_ENCRYPTION_40, STRENGTH128BITS, STRENGTH40BITS, structureTreeRoot, tabs, tagged, taggingMode, ttfUnicodeWriter, VERSION_1_2, VERSION_1_3, VERSION_1_4, VERSION_1_5, VERSION_1_6, VERSION_1_7, WILL_PRINT, WILL_SAVE, xmpMetadata, xmpWriter

Fields inherited from class DocWriter

closeStream, document, EQUALS, FORWARD, GT, LT, NEWLINE, open, os, pageSize, pause, QUOTE, SPACE, TAB

Constructor Summary

Constructors

Constructor	Description
PdfASmartCopy(Document document, OutputStream os, PdfAConformanceLevel conformanceLevel)	Constructor

Method Summary

Modifier and Type	Method	Description
void	addPage(PdfImportedPage iPage)	Add an imported page to our output
protected PdfIndirectReference	copyIndirect(PRIndirectReference in)	Translate a PRIndirectReference to a PdfIndirectReference In addition, translates the object numbers, and copies the referenced object to the output file.
void	freeReader(PdfReader reader)	Use this method to writes the reader to the document and free the memory used by it.

Methods inherited from class PdfACopy

addDocument, cacheObject, close, createPageStamp, createXmpWriter, createXmpWriter, getCounter, getTtfUnicodeWriter, initPdfIsoConformance, setOutputIntents, setOutputIntents

Methods inherited from class PdfCopy

add, add, addAnnotation, addDocument, addPage, addToBody, addToBody, copyArray, copyArray, copyDictionary, copyDictionary, copyDocumentFields, copyIndirect, copyObject, copyObject, copyStream, fixStructureTreeRoot, fixTaggedStructure, flushAcroFields, flushIndirectObjects, flushTaggedObjects, getCatalog, getFlags, getImportedPage, getImportedPage, getImportedPageImpl, getOffStateName, isCheckButton, isRadioButton, isRotateContents, isStructTreeRootReference, isTextField, setFromIPage, setFromReader, setMergeFields, setPageEvent, setRotateContents, structureTreeRootKidsForReaderImported

Methods inherited from class PdfWriter

add, add, addAnnotation, addCalculationOrder, addDeveloperExtension, addDirectImageSimple, addDirectImageSimple, addDirectTemplateSimple, addFileAttachment, addFileAttachment, addFileAttachment, addJavaScript, addJavaScript, addJavaScript, addJavaScript, addJavaScript, addJavaScript, addLocalDestinations, addNamedDestination, addNamedDestinations, addOCGRadioGroup, addPageDictEntry, addSharedObjectsToBody, addSimple, addSimple, addSimpleExtGState, addSimplePattern, addSimplePatternColorspace, addSimpleProperty, addSimpleShading, addSimpleShadingPattern, addToBody, addToBody, addToBody, addToBody, addViewerPreference, addXFormsToBody, buildStructTreeRootForTagged, checkElementRole, checkPdfIsoConformance, checkPdfIsoConformance, clearTextWrap, createAnnotation, createAnnotation, createAnnotation, createXmpMetadata, eliminateFontSubset, fillOCProperties, getAcroForm, getBoxSize, getBoxSize, getColorProfile, getColorspaceName, getCompressionLevel, getCurrentDocumentSize, getCurrentPage, getCurrentPageNumber, getDefaultColorspace, getDirectContent, getDirectContentUnder, getEncryption, getExtraCatalog, getGroup, getImageReference, getIndirectReferenceNumber, getInfo, getInstance, getInstance, getNameString, getNewObjectNumber, getOCProperties, getOs, getPageDictEntries, getPageEvent, getPageNumber, getPageReference, getPageSize, getPdfDocument, getPdfIndirectReference, getPdfReaderInstance, getPdfVersion, getPDFXConformance, getReaderFile, getReferenceJBIG2Globals, getRootOutline, getRunDirection, getSpaceCharRatio, getStandardStructElems, getStructureTreeRoot, getTabs, getVerticalPosition, getXmpWriter, isFullCompression, isPageEmpty, isPdfIso, isPdfX, isRgbTransparencyBlending, isStrictImageSequence, isTagged, isUserProperties, lockLayer, needToBeMarkedInContent, open, propertyExists, registerLayer, releaseTemplate, reorderPages, resetContent, resetPageDictEntries, setAdditionalAction, setAtLeastPdfVersion, setBoxSize, setCollection, setCompressionLevel, setCropBoxSize, setDefaultColorspace, setDuration, setEncryption, setEncryption, setEncryption, setEncryption, setEncryption, setFullCompression, setGroup, setInitialLeading, setLanguage, setLinearPageMode, setOpenAction, setOpenAction, setOutlines, setOutputIntents, setPageAction, setPageEmpty, setPageLabels, setPageViewport, setPageXmpMetadata, setPdfVersion, setPdfVersion, setPDFXConformance, setRgbTransparencyBlending, setRunDirection, setSigFlags, setSpaceCharRatio, setStrictImageSequence, setTabs, setTagged, setTagged, setThumbnail, setTransition, setUserProperties, setUserunit, setViewerPreferences, setXmpMetadata, useExternalCacheForTagStructure, writeKeyInfo, writeOutlines

Methods inherited from class DocWriter

add, addTabs, flush, getISOBytes, isCloseStream, isPaused, newPage, pause, resetPageCount, resume, setCloseStream, setMarginMirroring, setMarginMirroringTopBottom, setMargins, setPageCount, setPageSize, write, write, writeEnd, writeEnd, writeMarkupAttributes, writeStart

Methods inherited from class Object

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

Field Details

LOGGER

private static final Logger LOGGER

streamMap

private HashMap<PdfSmartCopy.ByteStore, PdfIndirectReference> streamMap

the cache with the streams and references.

serialized

private final HashMap<RefKey,Integer> serialized

Constructor Details

PdfASmartCopy

public PdfASmartCopy(Document document,
 OutputStream os,
 PdfAConformanceLevel conformanceLevel)
              throws DocumentException

Constructor

Parameters:

document - document

os - outputstream

conformanceLevel -

Throws:

DocumentException

Method Details

copyIndirect

protected PdfIndirectReference copyIndirect(PRIndirectReference in)
                                     throws IOException,
BadPdfFormatException

Description copied from class: PdfCopy

Translate a PRIndirectReference to a PdfIndirectReference In addition, translates the object numbers, and copies the referenced object to the output file. NB: PRIndirectReferences (and PRIndirectObjects) really need to know what file they came from, because each file has its own namespace. The translation we do from their namespace to ours is *at best* heuristic, and guaranteed to fail under some circumstances.

Overrides:

copyIndirect in class PdfCopy

Throws:

IOException

BadPdfFormatException

freeReader

public void freeReader(PdfReader reader)
                throws IOException

Description copied from class: PdfWriter

Use this method to writes the reader to the document and free the memory used by it. The main use is when concatenating multiple documents to keep the memory usage restricted to the current appending document.

Overrides:

freeReader in class PdfCopy

Parameters:

reader - the PdfReader to free

Throws:

IOException - on error

addPage

public void addPage(PdfImportedPage iPage)
             throws IOException,
BadPdfFormatException

Description copied from class: PdfCopy

Add an imported page to our output

Overrides:

addPage in class PdfACopy

Parameters:

iPage - an imported page

Throws:

IOException

BadPdfFormatException