Package com.itextpdf.text.pdf
Class PdfSmartCopy
- java.lang.Object
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- com.itextpdf.text.DocWriter
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- com.itextpdf.text.pdf.PdfWriter
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- com.itextpdf.text.pdf.PdfCopy
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- com.itextpdf.text.pdf.PdfSmartCopy
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- All Implemented Interfaces:
DocListener
,ElementListener
,PdfAnnotations
,PdfDocumentActions
,PdfEncryptionSettings
,PdfPageActions
,PdfRunDirection
,PdfVersion
,PdfViewerPreferences
,java.util.EventListener
public class PdfSmartCopy extends PdfCopy
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 Classes Modifier and Type Class Description (package private) static class
PdfSmartCopy.ByteStore
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Nested classes/interfaces inherited from class com.itextpdf.text.pdf.PdfCopy
PdfCopy.ImportedPage, PdfCopy.IndirectReferences, PdfCopy.PageStamp, PdfCopy.StampContent
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Nested classes/interfaces inherited from class com.itextpdf.text.pdf.PdfWriter
PdfWriter.PdfBody, PdfWriter.PdfTrailer
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Field Summary
Fields Modifier and Type Field Description protected Counter
COUNTER
private static Logger
LOGGER
private java.util.HashMap<RefKey,java.lang.Integer>
serialized
private java.util.HashMap<PdfSmartCopy.ByteStore,PdfIndirectReference>
streamMap
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
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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
Constructors Constructor Description PdfSmartCopy(Document document, java.io.OutputStream os)
Creates a PdfSmartCopy instance.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
addPage(PdfImportedPage iPage)
Add an imported page to our outputprotected 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 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
getCounter()
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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
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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
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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 Detail
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LOGGER
private static final Logger LOGGER
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streamMap
private java.util.HashMap<PdfSmartCopy.ByteStore,PdfIndirectReference> streamMap
the cache with the streams and references.
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serialized
private final java.util.HashMap<RefKey,java.lang.Integer> serialized
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COUNTER
protected Counter COUNTER
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Constructor Detail
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PdfSmartCopy
public PdfSmartCopy(Document document, java.io.OutputStream os) throws DocumentException
Creates a PdfSmartCopy instance.- Throws:
DocumentException
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Method Detail
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getCounter
protected Counter getCounter()
- Overrides:
getCounter
in classPdfCopy
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copyIndirect
protected PdfIndirectReference copyIndirect(PRIndirectReference in) throws java.io.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:
java.io.IOException
BadPdfFormatException
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freeReader
public void freeReader(PdfReader reader) throws java.io.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 classPdfCopy
- Parameters:
reader
- thePdfReader
to free- Throws:
java.io.IOException
- on error
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addPage
public void addPage(PdfImportedPage iPage) throws java.io.IOException, BadPdfFormatException
Description copied from class:PdfCopy
Add an imported page to our output- Overrides:
addPage
in classPdfCopy
- Parameters:
iPage
- an imported page- Throws:
java.io.IOException
BadPdfFormatException
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