PdfReader

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com.lowagie.text.pdf
Class PdfReader

java.lang.Object
  com.lowagie.text.pdf.PdfReader

All Implemented Interfaces:: PdfViewerPreferences

Direct Known Subclasses:: FdfReader

public class PdfReader
extends Object
implements PdfViewerPreferences
extends Object
implements PdfViewerPreferences

Reads a PDF document.

Author:: Paulo Soares (psoares@consiste.pt), Kazuya Ujihara

Nested Class Summary
`(package private) static class`	`PdfReader.PageRefs`

Field Summary
`protected PRAcroForm`	`acroForm`
`protected boolean`	`acroFormParsed`
`private boolean`	`appendable` Holds value of property appendable.
`protected PdfDictionary`	`catalog`
`protected Certificate`	`certificate`
`protected Key`	`certificateKey`
`protected String`	`certificateKeyProvider`
`protected boolean`	`consolidateNamedDestinations`
`private PRIndirectReference`	`cryptoRef`
`protected PdfEncryption`	`decrypt`
`protected boolean`	`encrypted`
`private boolean`	`encryptionError`
`(package private) static byte[]`	`endobj`
`(package private) static byte[]`	`endstream`
`protected int`	`eofPos`
`private int`	`fileLength`
`protected int`	`freeXref`
`private boolean`	`hybridXref`
`protected int`	`lastXref`
`private int`	`lastXrefPartial`
`protected boolean`	`newXrefType`
`private int`	`objGen`
`private int`	`objNum`
`protected HashMap`	`objStmMark`
`protected IntHashtable`	`objStmToOffset`
`private boolean`	`ownerPasswordUsed`
`(package private) static PdfName[]`	`pageInhCandidates`
`protected PdfReader.PageRefs`	`pageRefs`
`private boolean`	`partial`
`protected byte[]`	`password`
`protected char`	`pdfVersion`
`protected int`	`pValue`
`private int`	`readDepth`
`protected boolean`	`rebuilt`
`protected boolean`	`remoteToLocalNamedDestinations`
`(package private) PdfDictionary`	`rootPages`
`protected int`	`rValue`
`protected boolean`	`sharedStreams`
`protected ArrayList`	`strings`
`protected boolean`	`tampered`
`protected PRTokeniser`	`tokens`
`protected PdfDictionary`	`trailer`
`private PdfViewerPreferencesImp`	`viewerPreferences`
`protected int[]`	`xref`
`private ArrayList`	`xrefObj`

Constructor Summary
`protected`	`PdfReader()`
	`PdfReader(byte[] pdfIn)` Reads and parses a PDF document.
	`PdfReader(byte[] pdfIn, byte[] ownerPassword)` Reads and parses a PDF document.
	`PdfReader(InputStream is)` Reads and parses a PDF document.
	`PdfReader(InputStream is, byte[] ownerPassword)` Reads and parses a PDF document.
	`PdfReader(PdfReader reader)` Creates an independent duplicate.
	`PdfReader(RandomAccessFileOrArray raf, byte[] ownerPassword)` Reads and parses a pdf document.
	`PdfReader(String filename)` Reads and parses a PDF document.
	`PdfReader(String filename, byte[] ownerPassword)` Reads and parses a PDF document.
	`PdfReader(String filename, Certificate certificate, Key certificateKey, String certificateKeyProvider)` Reads and parses a PDF document.
	`PdfReader(URL url)` Reads and parses a PDF document.
	`PdfReader(URL url, byte[] ownerPassword)` Reads and parses a PDF document.

Method Summary
`PRIndirectReference`	`addPdfObject(PdfObject obj)`
`void`	`addViewerPreference(PdfName key, PdfObject value)` Adds a viewer preference
`static byte[]`	`ASCII85Decode(byte[] in)` Decodes a stream that has the ASCII85Decode filter.
`static byte[]`	`ASCIIHexDecode(byte[] in)` Decodes a stream that has the ASCIIHexDecode filter.
`private void`	`checkPRStreamLength(PRStream stream)`
`void`	`close()` Closes the reader
`byte[]`	`computeUserPassword()`
`void`	`consolidateNamedDestinations()` Replaces all the local named links with the actual destinations.
`private boolean`	`convertNamedDestination(PdfObject obj, HashMap names)` Converts a remote named destination GoToR with a local named destination if there's a corresponding name.
`int`	`createFakeFontSubsets()` Finds all the fonts not subset but embedded and marks them as subset.
`static byte[]`	`decodePredictor(byte[] in, PdfObject dicPar)`
`double`	`dumpPerc()`
`protected static PdfDictionary`	`duplicatePdfDictionary(PdfDictionary original, PdfDictionary copy, PdfReader newReader)`
`protected static PdfObject`	`duplicatePdfObject(PdfObject original, PdfReader newReader)`
`void`	`eliminateSharedStreams()` Eliminates shared streams if they exist.
`private void`	`ensureXrefSize(int size)`
`private boolean`	`equalsArray(byte[] ar1, byte[] ar2, int size)`
`(package private) static boolean`	`equalsn(byte[] a1, byte[] a2)`
`(package private) static boolean`	`existsName(PdfDictionary dic, PdfName key, PdfName value)`
`static byte[]`	`FlateDecode(byte[] in)` Decodes a stream that has the FlateDecode filter.
`static byte[]`	`FlateDecode(byte[] in, boolean strict)` A helper to FlateDecode.
`AcroFields`	`getAcroFields()` Gets a read-only version of `AcroFields`.
`PRAcroForm`	`getAcroForm()` Returns the document's acroform, if it has one.
`Rectangle`	`getBoxSize(int index, String boxName)` Gets the box size.
`PdfDictionary`	`getCatalog()` Returns the document's catalog.
`int`	`getCertificationLevel()` Gets the certification level for this document.
`Rectangle`	`getCropBox(int index)` Gets the crop box without taking rotation into account.
`int`	`getCryptoMode()`
`(package private) PdfIndirectReference`	`getCryptoRef()`
`(package private) PdfEncryption`	`getDecrypt()`
`int`	`getEofPos()` Gets the byte address of the %%EOF marker.
`int`	`getFileLength()` Getter for property fileLength.
`(package private) static String`	`getFontName(PdfDictionary dic)`
`HashMap`	`getInfo()` Returns the content of the document information dictionary as a `HashMap` of `String`.
`String`	`getJavaScript()` Gets the global document JavaScript.
`String`	`getJavaScript(RandomAccessFileOrArray file)` Gets the global document JavaScript.
`int`	`getLastXref()` Gets the byte address of the last xref table.
`ArrayList`	`getLinks(int page)`
`byte[]`	`getMetadata()` Gets the XML metadata.
`private static PdfArray`	`getNameArray(PdfObject obj)`
`HashMap`	`getNamedDestination()` Gets all the named destinations as an `HashMap`.
`HashMap`	`getNamedDestination(boolean keepNames)` Gets all the named destinations as an `HashMap`.
`HashMap`	`getNamedDestinationFromNames()` Gets the named destinations from the /Dests key in the catalog as an `HashMap`.
`HashMap`	`getNamedDestinationFromNames(boolean keepNames)` Gets the named destinations from the /Dests key in the catalog as an `HashMap`.
`HashMap`	`getNamedDestinationFromStrings()` Gets the named destinations from the /Names key in the catalog as an `HashMap`.
`static Rectangle`	`getNormalizedRectangle(PdfArray box)` Normalizes a `Rectangle` so that llx and lly are smaller than urx and ury.
`int`	`getNumberOfPages()` Gets the number of pages in the document.
`byte[]`	`getPageContent(int pageNum)` Gets the contents of the page.
`byte[]`	`getPageContent(int pageNum, RandomAccessFileOrArray file)` Gets the contents of the page.
`PdfDictionary`	`getPageN(int pageNum)` Gets the dictionary that represents a page.
`PdfDictionary`	`getPageNRelease(int pageNum)`
`PRIndirectReference`	`getPageOrigRef(int pageNum)` Gets the page reference to this page.
`int`	`getPageRotation(int index)` Gets the page rotation.
`(package private) int`	`getPageRotation(PdfDictionary page)`
`Rectangle`	`getPageSize(int index)` Gets the page size without taking rotation into account.
`Rectangle`	`getPageSize(PdfDictionary page)` Gets the page from a page dictionary
`Rectangle`	`getPageSizeWithRotation(int index)` Gets the page size, taking rotation into account.
`Rectangle`	`getPageSizeWithRotation(PdfDictionary page)` Gets the rotated page from a page dictionary.
`PdfObject`	`getPdfObject(int idx)`
`static PdfObject`	`getPdfObject(PdfObject obj)` Reads a `PdfObject` resolving an indirect reference if needed.
`static PdfObject`	`getPdfObject(PdfObject obj, PdfObject parent)`
`PdfObject`	`getPdfObjectRelease(int idx)`
`static PdfObject`	`getPdfObjectRelease(PdfObject obj)`
`static PdfObject`	`getPdfObjectRelease(PdfObject obj, PdfObject parent)` Reads a `PdfObject` resolving an indirect reference if needed.
`protected PdfReaderInstance`	`getPdfReaderInstance(PdfWriter writer)`
`char`	`getPdfVersion()` Gets the PDF version.
`int`	`getPermissions()` Gets the encryption permissions.
`RandomAccessFileOrArray`	`getSafeFile()` Gets a new file instance of the original PDF document.
`int`	`getSimpleViewerPreferences()` Returns a bitset representing the PageMode and PageLayout viewer preferences.
`static byte[]`	`getStreamBytes(PRStream stream)` Get the content from a stream applying the required filters.
`static byte[]`	`getStreamBytes(PRStream stream, RandomAccessFileOrArray file)` Get the content from a stream applying the required filters.
`static byte[]`	`getStreamBytesRaw(PRStream stream)` Get the content from a stream as it is without applying any filter.
`static byte[]`	`getStreamBytesRaw(PRStream stream, RandomAccessFileOrArray file)` Get the content from a stream as it is without applying any filter.
`(package private) static String`	`getSubsetPrefix(PdfDictionary dic)`
`PdfDictionary`	`getTrailer()` Gets the trailer dictionary
`int`	`getXrefSize()` Gets the number of xref objects.
`boolean`	`is128Key()` Returns `true` if the PDF has a 128 bit key encryption.
`boolean`	`isAppendable()` Getter for property appendable.
`boolean`	`isEncrypted()` Returns `true` if the PDF is encrypted.
`boolean`	`isHybridXref()` Getter for property hybridXref.
`boolean`	`isMetadataEncrypted()`
`boolean`	`isNewXrefType()` Getter for property newXrefType.
`boolean`	`isOpenedWithFullPermissions()` Checks if the document was opened with the owner password so that the end application can decide what level of access restrictions to apply.
`boolean`	`isRebuilt()` Checks if the document had errors and was rebuilt.
`boolean`	`isTampered()` Checks if the document was changed.
`private void`	`iterateBookmarks(PdfObject outlineRef, HashMap names)`
`static PdfObject`	`killIndirect(PdfObject obj)` Eliminates the reference to the object freeing the memory used by it and clearing the xref entry.
`protected void`	`killXref(PdfObject obj)`
`static byte[]`	`LZWDecode(byte[] in)` Decodes a stream that has the LZWDecode filter.
`void`	`makeRemoteNamedDestinationsLocal()` Replaces remote named links with local destinations that have the same name.
`protected PdfArray`	`readArray()`
`private void`	`readDecryptedDocObj()`
`protected PdfDictionary`	`readDictionary()`
`protected void`	`readDocObj()`
`protected void`	`readDocObjPartial()`
`protected void`	`readObjStm(PRStream stream, IntHashtable map)`
`protected PdfObject`	`readOneObjStm(PRStream stream, int idx)`
`protected void`	`readPages()`
`protected void`	`readPdf()`
`protected void`	`readPdfPartial()`
`protected PdfObject`	`readPRObject()`
`protected PdfObject`	`readSingleObject(int k)`
`protected void`	`readXref()`
`protected PdfDictionary`	`readXrefSection()`
`protected boolean`	`readXRefStream(int ptr)`
`protected void`	`rebuildXref()`
`void`	`releaseLastXrefPartial()`
`static void`	`releaseLastXrefPartial(PdfObject obj)`
`void`	`releasePage(int pageNum)`
`void`	`removeAnnotations()` Removes all the annotations and fields from the document.
`void`	`removeFields()` Removes all the fields from the document.
`protected void`	`removeUnusedNode(PdfObject obj, boolean[] hits)`
`int`	`removeUnusedObjects()` Removes all the unreachable objects.
`void`	`removeUsageRights()` Removes any usage rights that this PDF may have.
`private boolean`	`replaceNamedDestination(PdfObject obj, HashMap names)`
`void`	`resetLastXrefPartial()`
`void`	`resetReleasePage()`
`void`	`selectPages(List pagesToKeep)` Selects the pages to keep in the document.
`void`	`selectPages(String ranges)` Selects the pages to keep in the document.
`void`	`setAppendable(boolean appendable)` Setter for property appendable.
`void`	`setPageContent(int pageNum, byte[] content)` Sets the contents of the page.
`void`	`setPageContent(int pageNum, byte[] content, int compressionLevel)` Sets the contents of the page.
`void`	`setTampered(boolean tampered)` Sets the tampered state.
`void`	`setViewerPreferences(int preferences)` Sets the viewer preferences as the sum of several constants.
`(package private) void`	`setViewerPreferences(PdfViewerPreferencesImp vp)`
`private void`	`setXrefPartialObject(int idx, PdfObject obj)`
`int`	`shuffleSubsetNames()` Finds all the font subsets and changes the prefixes to some random values.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

pageInhCandidates

static final PdfName[] pageInhCandidates

endstream

static final byte[] endstream

endobj

static final byte[] endobj

tokens

protected PRTokeniser tokens

xref

protected int[] xref

objStmMark

protected HashMap objStmMark

objStmToOffset

protected IntHashtable objStmToOffset

newXrefType

protected boolean newXrefType

xrefObj

private ArrayList xrefObj

rootPages

PdfDictionary rootPages

trailer

protected PdfDictionary trailer

catalog

protected PdfDictionary catalog

pageRefs

protected PdfReader.PageRefs pageRefs

acroForm

protected PRAcroForm acroForm

acroFormParsed

protected boolean acroFormParsed

encrypted

protected boolean encrypted

rebuilt

protected boolean rebuilt

freeXref

protected int freeXref

tampered

protected boolean tampered

lastXref

protected int lastXref

eofPos

protected int eofPos

pdfVersion

protected char pdfVersion

decrypt

protected PdfEncryption decrypt

password

protected byte[] password

certificateKey

protected Key certificateKey

certificate

protected Certificate certificate

certificateKeyProvider

protected String certificateKeyProvider

ownerPasswordUsed

private boolean ownerPasswordUsed

strings

protected ArrayList strings

sharedStreams

protected boolean sharedStreams

consolidateNamedDestinations

protected boolean consolidateNamedDestinations

remoteToLocalNamedDestinations

protected boolean remoteToLocalNamedDestinations

rValue

protected int rValue

pValue

protected int pValue

objNum

private int objNum

objGen

private int objGen

fileLength

private int fileLength

hybridXref

private boolean hybridXref

lastXrefPartial

private int lastXrefPartial

partial

private boolean partial

cryptoRef

private PRIndirectReference cryptoRef

viewerPreferences

private PdfViewerPreferencesImp viewerPreferences

encryptionError

private boolean encryptionError

appendable

private boolean appendable

Holds value of property appendable.

readDepth

private int readDepth

Constructor Detail