Package com.itextpdf.text.pdf
Class PdfSmartCopy
java.lang.Object
com.itextpdf.text.DocWriter
com.itextpdf.text.pdf.PdfWriter
com.itextpdf.text.pdf.PdfCopy
com.itextpdf.text.pdf.PdfSmartCopy
- All Implemented Interfaces:
DocListener
,ElementListener
,PdfAnnotations
,PdfDocumentActions
,PdfEncryptionSettings
,PdfPageActions
,PdfRunDirection
,PdfVersion
,PdfViewerPreferences
,EventListener
PdfSmartCopy has the same functionality as PdfCopy,
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.
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Nested Class Summary
Nested ClassesNested classes/interfaces inherited from class com.itextpdf.text.pdf.PdfCopy
PdfCopy.ImportedPage, PdfCopy.IndirectReferences, PdfCopy.PageStamp, PdfCopy.StampContent
Nested classes/interfaces inherited from class com.itextpdf.text.pdf.PdfWriter
PdfWriter.PdfBody, PdfWriter.PdfTrailer
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Field Summary
FieldsModifier and TypeFieldDescriptionprotected Counter
private static final Logger
the cache with the streams and references.Fields inherited from class com.itextpdf.text.pdf.PdfCopy
disableIndirects, fieldArray, fieldKeys, fields, fieldTemplates, importedPages, indirectMap, indirectObjects, indirects, mergeFields, namePtr, parentObjects, reader, savedObjects, structTreeRootReference, updateRootKids, widgetKeys
Fields inherited from class com.itextpdf.text.pdf.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
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Constructor Summary
ConstructorsConstructorDescriptionPdfSmartCopy
(Document document, OutputStream os) Creates a PdfSmartCopy instance. -
Method Summary
Modifier and TypeMethodDescriptionvoid
addPage
(PdfImportedPage iPage) Add an imported page to our outputprotected PdfIndirectReference
Translate a PRIndirectReference to a PdfIndirectReference In addition, translates the object numbers, and copies the referenced object to the output file if it wasn't available in the cache yet.void
freeReader
(PdfReader reader) Use this method to writes the reader to the document and free the memory used by it.protected Counter
Methods inherited from class com.itextpdf.text.pdf.PdfCopy
add, add, addAnnotation, addDocument, addDocument, addPage, addToBody, addToBody, cacheObject, close, copyArray, copyArray, copyDictionary, copyDictionary, copyDocumentFields, copyIndirect, copyObject, copyObject, copyStream, createPageStamp, 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 com.itextpdf.text.pdf.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, createXmpWriter, createXmpWriter, 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, getTtfUnicodeWriter, getVerticalPosition, getXmpWriter, initPdfIsoConformance, 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, setOutputIntents, 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 com.itextpdf.text.DocWriter
add, addTabs, flush, getISOBytes, isCloseStream, isPaused, newPage, pause, resetPageCount, resume, setCloseStream, setMarginMirroring, setMarginMirroringTopBottom, setMargins, setPageCount, setPageSize, write, write, writeEnd, writeEnd, writeMarkupAttributes, writeStart
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Field Details
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LOGGER
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streamMap
the cache with the streams and references. -
serialized
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COUNTER
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Constructor Details
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PdfSmartCopy
Creates a PdfSmartCopy instance.- Throws:
DocumentException
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Method Details
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getCounter
- Overrides:
getCounter
in classPdfCopy
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copyIndirect
protected PdfIndirectReference copyIndirect(PRIndirectReference in) throws IOException, BadPdfFormatException Translate a PRIndirectReference to a PdfIndirectReference In addition, translates the object numbers, and copies the referenced object to the output file if it wasn't available in the cache yet. If it's in the cache, the reference to the already used stream is returned. 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 classPdfCopy
- Throws:
IOException
BadPdfFormatException
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freeReader
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 classPdfCopy
- Parameters:
reader
- thePdfReader
to free- Throws:
IOException
- on error
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addPage
Description copied from class:PdfCopy
Add an imported page to our output- Overrides:
addPage
in classPdfCopy
- Parameters:
iPage
- an imported page- Throws:
IOException
BadPdfFormatException
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