PdfReader (openpdf 1.3.17 API)

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

All Implemented Interfaces:

PdfViewerPreferences, Closeable, AutoCloseable

Direct Known Subclasses:

FdfReader
```
public class PdfReader
extends Object
implements PdfViewerPreferences, Closeable
```
Reads a PDF document.

Author:

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

Field Summary

Fields
Modifier and Type	Field and Description
`protected PRAcroForm`	`acroForm`
`protected boolean`	`acroFormParsed`
`protected PdfDictionary`	`catalog`
`protected Certificate`	`certificate`
`protected Key`	`certificateKey`
`protected String`	`certificateKeyProvider`
`protected boolean`	`consolidateNamedDestinations`
`protected PdfEncryption`	`decrypt`
`protected boolean`	`encrypted`
`protected int`	`eofPos`
`protected int`	`freeXref`
`protected int`	`lastXref`
`protected boolean`	`newXrefType`
`protected Map<Integer,IntHashtable>`	`objStmMark`
`protected IntHashtable`	`objStmToOffset`
`protected com.lowagie.text.pdf.PdfReader.PageRefs`	`pageRefs`
`protected byte[]`	`password`
`protected char`	`pdfVersion`
`protected int`	`pValue`
`protected boolean`	`rebuilt`
`protected boolean`	`remoteToLocalNamedDestinations`
`protected int`	`rValue`
`protected boolean`	`sharedStreams`
`protected List<PdfObject>`	`strings`
`protected boolean`	`tampered`
`protected PRTokeniser`	`tokens`
`protected PdfDictionary`	`trailer`
`protected int[]`	`xref`

Constructor Summary

Constructors
Modifier	Constructor and Description
`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

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`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.
`void`	`close()` Closes the reader
`byte[]`	`computeUserPassword()`
`void`	`consolidateNamedDestinations()` Replaces all the local named links with the actual destinations.
`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.
`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()`
`int`	`getEofPos()` Gets the byte address of the %%EOF marker.
`int`	`getFileLength()` Getter for property fileLength.
`Map<String,String>`	`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<PdfAnnotation.PdfImportedLink>`	`getLinks(int page)`
`byte[]`	`getMetadata()` Gets the XML metadata.
`HashMap<Object,PdfObject>`	`getNamedDestination()` Gets all the named destinations as an `HashMap`.
`HashMap<Object,PdfObject>`	`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<Object,PdfObject>`	`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.
`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 com.lowagie.text.pdf.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.
`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`	`isModificationlowedWithoutOwnerPassword()` Checks if an encrypted document may be modified if the owner password was not supplied.
`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.
`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()`
`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.
`void`	`resetLastXrefPartial()`
`void`	`resetReleasePage()`
`void`	`selectPages(List<Integer> 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`	`setModificationAllowedWithoutOwnerPassword(boolean modificationAllowedWithoutOwnerPassword)` Sets whether the document (if encrypted) may be modified even if the owner password was not supplied.
`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.
`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
  - tokens
```
protected PRTokeniser tokens
```
  - xref
```
protected int[] xref
```
  - objStmMark
```
protected Map<Integer,IntHashtable> objStmMark
```
  - objStmToOffset
```
protected IntHashtable objStmToOffset
```
  - newXrefType
```
protected boolean newXrefType
```
  - trailer
```
protected PdfDictionary trailer
```
  - catalog
```
protected PdfDictionary catalog
```
  - pageRefs
```
protected com.lowagie.text.pdf.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
```
  - strings
```
protected List<PdfObject> strings
```
  - sharedStreams
```
protected boolean sharedStreams
```
  - consolidateNamedDestinations
```
protected boolean consolidateNamedDestinations
```
  - remoteToLocalNamedDestinations
```
protected boolean remoteToLocalNamedDestinations
```
  - rValue
```
protected int rValue
```
  - pValue
```
protected int pValue
```
- Constructor Detail
  - PdfReader
```
protected PdfReader()
```
  - PdfReader
```
public PdfReader(String filename)
          throws IOException
```
    Reads and parses a PDF document.
    
    Parameters:
    
    filename - the file name of the document
    
    Throws:
    
    IOException - on error
  - PdfReader
```
public PdfReader(String filename,
                 byte[] ownerPassword)
          throws IOException
```
    Reads and parses a PDF document.
    
    Parameters:
    
    filename - the file name of the document
    
    ownerPassword - the password to read the document
    
    Throws:
    
    IOException - on error
  - PdfReader
```
public PdfReader(byte[] pdfIn)
          throws IOException
```
    Reads and parses a PDF document.
    
    Parameters:
    
    pdfIn - the byte array with the document
    
    Throws:
    
    IOException - on error
  - PdfReader
```
public PdfReader(byte[] pdfIn,
                 byte[] ownerPassword)
          throws IOException
```
    Reads and parses a PDF document.
    
    Parameters:
    
    pdfIn - the byte array with the document
    
    ownerPassword - the password to read the document
    
    Throws:
    
    IOException - on error
  - PdfReader
```
public PdfReader(String filename,
                 Certificate certificate,
                 Key certificateKey,
                 String certificateKeyProvider)
          throws IOException
```
    Reads and parses a PDF document.
    
    Parameters:
    
    filename - the file name of the document
    
    certificate - the certificate to read the document
    
    certificateKey - the private key of the certificate
    
    certificateKeyProvider - the security provider for certificateKey
    
    Throws:
    
    IOException - on error
  - PdfReader
```
public PdfReader(URL url)
          throws IOException
```
    Reads and parses a PDF document.
    
    Parameters:
    
    url - the URL of the document
    
    Throws:
    
    IOException - on error
  - PdfReader
```
public PdfReader(URL url,
                 byte[] ownerPassword)
          throws IOException
```
    Reads and parses a PDF document.
    
    Parameters:
    
    url - the URL of the document
    
    ownerPassword - the password to read the document
    
    Throws:
    
    IOException - on error
  - PdfReader
```
public PdfReader(InputStream is,
                 byte[] ownerPassword)
          throws IOException
```
    Reads and parses a PDF document.
    
    Parameters:
    
    is - the InputStream containing the document. The stream is read to the end but is not closed
    
    ownerPassword - the password to read the document
    
    Throws:
    
    IOException - on error
  - PdfReader
```
public PdfReader(InputStream is)
          throws IOException
```
    Reads and parses a PDF document.
    
    Parameters:
    
    is - the InputStream containing the document. The stream is read to the end but is not closed
    
    Throws:
    
    IOException - on error
  - PdfReader
```
public PdfReader(RandomAccessFileOrArray raf,
                 byte[] ownerPassword)
          throws IOException
```
    Reads and parses a pdf document. Contrary to the other constructors only the xref is read into memory. The reader is said to be working in "partial" mode as only parts of the pdf are read as needed. The pdf is left open but may be closed at any time with PdfReader.close(), reopen is automatic.
    
    Parameters:
    
    raf - the document location
    
    ownerPassword - the password or null for no password
    
    Throws:
    
    IOException - on error
  - PdfReader
```
public PdfReader(PdfReader reader)
```
    Creates an independent duplicate.
    
    Parameters:
    
    reader - the PdfReader to duplicate
- Method Detail
  - getSafeFile
```
public RandomAccessFileOrArray getSafeFile()
```
    Gets a new file instance of the original PDF document.
    
    Returns:
    
    a new file instance of the original PDF document
  - getPdfReaderInstance
```
protected com.lowagie.text.pdf.PdfReaderInstance getPdfReaderInstance(PdfWriter writer)
```
  - getNumberOfPages
```
public int getNumberOfPages()
```
    Gets the number of pages in the document.
    
    Returns:
    
    the number of pages in the document
  - getCatalog
```
public PdfDictionary getCatalog()
```
    Returns the document's catalog. This dictionary is not a copy, any changes will be reflected in the catalog.
    
    Returns:
    
    the document's catalog
  - getAcroForm
```
public PRAcroForm getAcroForm()
```
    Returns the document's acroform, if it has one.
    
    Returns:
    
    the document's acroform
  - getPageRotation
```
public int getPageRotation(int index)
```
    Gets the page rotation. This value can be 0, 90, 180 or 270.
    
    Parameters:
    
    index - the page number. The first page is 1
    
    Returns:
    
    the page rotation
  - getPageSizeWithRotation
```
public Rectangle getPageSizeWithRotation(int index)
```
    Gets the page size, taking rotation into account. This is a Rectangle with the value of the /MediaBox and the /Rotate key.
    
    Parameters:
    
    index - the page number. The first page is 1
    
    Returns:
    
    a Rectangle
  - getPageSizeWithRotation
```
public Rectangle getPageSizeWithRotation(PdfDictionary page)
```
    Gets the rotated page from a page dictionary.
    
    Parameters:
    
    page - the page dictionary
    
    Returns:
    
    the rotated page
  - getPageSize
```
public Rectangle getPageSize(int index)
```
    Gets the page size without taking rotation into account. This is the value of the /MediaBox key.
    
    Parameters:
    
    index - the page number. The first page is 1
    
    Returns:
    
    the page size
  - getPageSize
```
public Rectangle getPageSize(PdfDictionary page)
```
    Gets the page from a page dictionary
    
    Parameters:
    
    page - the page dictionary
    
    Returns:
    
    the page
  - getCropBox
```
public Rectangle getCropBox(int index)
```
    Gets the crop box without taking rotation into account. This is the value of the /CropBox key. The crop box is the part of the document to be displayed or printed. It usually is the same as the media box but may be smaller. If the page doesn't have a crop box the page size will be returned.
    
    Parameters:
    
    index - the page number. The first page is 1
    
    Returns:
    
    the crop box
  - getBoxSize
```
public Rectangle getBoxSize(int index,
                            String boxName)
```
    Gets the box size. Allowed names are: "crop", "trim", "art", "bleed" and "media".
    
    Parameters:
    
    index - the page number. The first page is 1
    
    boxName - the box name
    
    Returns:
    
    the box rectangle or null
  - getInfo
```
public Map<String,String> getInfo()
```
    Returns the content of the document information dictionary as a HashMap of String.
    
    Returns:
    
    content of the document information dictionary
  - getNormalizedRectangle
```
public static Rectangle getNormalizedRectangle(PdfArray box)
```
    Normalizes a Rectangle so that llx and lly are smaller than urx and ury.
    
    Parameters:
    
    box - the original rectangle
    
    Returns:
    
    a normalized Rectangle
  - readPdf
```
protected void readPdf()
                throws IOException
```
    Throws:
    
    IOException
  - readPdfPartial
```
protected void readPdfPartial()
                       throws IOException
```
    Throws:
    
    IOException
  - getPdfObjectRelease
```
public static PdfObject getPdfObjectRelease(PdfObject obj)
```
    Parameters:
    
    obj - an object of PdfObject
    
    Returns:
    
    a PdfObject
  - getPdfObject
```
public static PdfObject getPdfObject(PdfObject obj)
```
    Reads a PdfObject resolving an indirect reference if needed.
    
    Parameters:
    
    obj - the PdfObject to read
    
    Returns:
    
    the resolved PdfObject
  - getPdfObjectRelease
```
public static PdfObject getPdfObjectRelease(PdfObject obj,
                                            PdfObject parent)
```
    Reads a PdfObject resolving an indirect reference if needed. If the reader was opened in partial mode the object will be released to save memory.
    
    Parameters:
    
    obj - the PdfObject to read
    
    parent - parent object
    
    Returns:
    
    a PdfObject
  - getPdfObject
```
public static PdfObject getPdfObject(PdfObject obj,
                                     PdfObject parent)
```
    Parameters:
    
    obj - the PdfObject to read
    
    parent - parent object
    
    Returns:
    
    a PdfObject
  - getPdfObjectRelease
```
public PdfObject getPdfObjectRelease(int idx)
```
    Parameters:
    
    idx - index
    
    Returns:
    
    a PdfObject
  - getPdfObject
```
public PdfObject getPdfObject(int idx)
```
    Parameters:
    
    idx - index
    
    Returns:
    
    aPdfObject
  - resetLastXrefPartial
```
public void resetLastXrefPartial()
```
  - releaseLastXrefPartial
```
public void releaseLastXrefPartial()
```
  - releaseLastXrefPartial
```
public static void releaseLastXrefPartial(PdfObject obj)
```
    Parameters:
    
    obj - an object of PdfObject
  - addPdfObject
```
public PRIndirectReference addPdfObject(PdfObject obj)
```
    Parameters:
    
    obj - an object of PdfObject
    
    Returns:
    
    an indirect reference
  - readPages
```
protected void readPages()
                  throws IOException
```
    Throws:
    
    IOException
  - readDocObjPartial
```
protected void readDocObjPartial()
                          throws IOException
```
    Throws:
    
    IOException
  - readSingleObject
```
protected PdfObject readSingleObject(int k)
                              throws IOException
```
    Throws:
    
    IOException
  - readOneObjStm
```
protected PdfObject readOneObjStm(PRStream stream,
                                  int idx)
                           throws IOException
```
    Throws:
    
    IOException
  - dumpPerc
```
public double dumpPerc()
```
    Returns:
    
    the percentage of the cross reference table that has been read
  - readDocObj
```
protected void readDocObj()
                   throws IOException
```
    Throws:
    
    IOException
  - readObjStm
```
protected void readObjStm(PRStream stream,
                          IntHashtable map)
                   throws IOException
```
    Throws:
    
    IOException
  - killIndirect
```
public static PdfObject killIndirect(PdfObject obj)
```
    Eliminates the reference to the object freeing the memory used by it and clearing the xref entry.
    
    Parameters:
    
    obj - the object. If it's an indirect reference it will be eliminated
    
    Returns:
    
    the object or the already erased dereferenced object
  - readXref
```
protected void readXref()
                 throws IOException
```
    Throws:
    
    IOException
  - readXrefSection
```
protected PdfDictionary readXrefSection()
                                 throws IOException
```
    Throws:
    
    IOException
  - readXRefStream
```
protected boolean readXRefStream(int ptr)
                          throws IOException
```
    Throws:
    
    IOException
  - rebuildXref
```
protected void rebuildXref()
                    throws IOException
```
    Throws:
    
    IOException
  - readDictionary
```
protected PdfDictionary readDictionary()
                                throws IOException
```
    Throws:
    
    IOException
  - readArray
```
protected PdfArray readArray()
                      throws IOException
```
    Throws:
    
    IOException
  - readPRObject
```
protected PdfObject readPRObject()
                          throws IOException
```
    Throws:
    
    IOException
  - FlateDecode
```
public static byte[] FlateDecode(byte[] in)
```
    Decodes a stream that has the FlateDecode filter.
    
    Parameters:
    
    in - the input data
    
    Returns:
    
    the decoded data
  - decodePredictor
```
public static byte[] decodePredictor(byte[] in,
                                     PdfObject dicPar)
```
    Parameters:
    
    in - the input data
    
    dicPar - an object of PdfObject
    
    Returns:
    
    a byte array
  - FlateDecode
```
public static byte[] FlateDecode(byte[] in,
                                 boolean strict)
```
    A helper to FlateDecode.
    
    Parameters:
    
    in - the input data
    
    strict - true to read a correct stream. false to try to read a corrupted stream
    
    Returns:
    
    the decoded data
  - ASCIIHexDecode
```
public static byte[] ASCIIHexDecode(byte[] in)
```
    Decodes a stream that has the ASCIIHexDecode filter.
    
    Parameters:
    
    in - the input data
    
    Returns:
    
    the decoded data
  - ASCII85Decode
```
public static byte[] ASCII85Decode(byte[] in)
```
    Decodes a stream that has the ASCII85Decode filter.
    
    Parameters:
    
    in - the input data
    
    Returns:
    
    the decoded data
  - LZWDecode
```
public static byte[] LZWDecode(byte[] in)
```
    Decodes a stream that has the LZWDecode filter.
    
    Parameters:
    
    in - the input data
    
    Returns:
    
    the decoded data
  - isRebuilt
```
public boolean isRebuilt()
```
    Checks if the document had errors and was rebuilt.
    
    Returns:
    
    true if rebuilt.
  - getPageN
```
public PdfDictionary getPageN(int pageNum)
```
    Gets the dictionary that represents a page.
    
    Parameters:
    
    pageNum - the page number. 1 is the first
    
    Returns:
    
    the page dictionary
  - getPageNRelease
```
public PdfDictionary getPageNRelease(int pageNum)
```
    Parameters:
    
    pageNum - page number
    
    Returns:
    
    a Dictionary object
  - releasePage
```
public void releasePage(int pageNum)
```
    Parameters:
    
    pageNum - page number
  - resetReleasePage
```
public void resetReleasePage()
```
  - getPageOrigRef
```
public PRIndirectReference getPageOrigRef(int pageNum)
```
    Gets the page reference to this page.
    
    Parameters:
    
    pageNum - the page number. 1 is the first
    
    Returns:
    
    the page reference
  - getPageContent
```
public byte[] getPageContent(int pageNum,
                             RandomAccessFileOrArray file)
                      throws IOException
```
    Gets the contents of the page.
    
    Parameters:
    
    pageNum - the page number. 1 is the first
    
    file - the location of the PDF document
    
    Returns:
    
    the content
    
    Throws:
    
    IOException - on error
  - getPageContent
```
public byte[] getPageContent(int pageNum)
                      throws IOException
```
    Gets the contents of the page.
    
    Parameters:
    
    pageNum - the page number. 1 is the first
    
    Returns:
    
    the content
    
    Throws:
    
    IOException - on error
  - killXref
```
protected void killXref(PdfObject obj)
```
  - setPageContent
```
public void setPageContent(int pageNum,
                           byte[] content)
```
    Sets the contents of the page.
    
    Parameters:
    
    content - the new page content
    
    pageNum - the page number. 1 is the first
  - setPageContent
```
public void setPageContent(int pageNum,
                           byte[] content,
                           int compressionLevel)
```
    Sets the contents of the page.
    
    Parameters:
    
    content - the new page content
    
    pageNum - the page number. 1 is the first
    
    compressionLevel - compression level
    
    Since:
    
    2.1.3 (the method already existed without param compressionLevel)
  - getStreamBytes
```
public static byte[] getStreamBytes(PRStream stream,
                                    RandomAccessFileOrArray file)
                             throws IOException
```
    Get the content from a stream applying the required filters.
    
    Parameters:
    
    stream - the stream
    
    file - the location where the stream is
    
    Returns:
    
    the stream content
    
    Throws:
    
    IOException - on error
  - getStreamBytes
```
public static byte[] getStreamBytes(PRStream stream)
                             throws IOException
```
    Get the content from a stream applying the required filters.
    
    Parameters:
    
    stream - the stream
    
    Returns:
    
    the stream content
    
    Throws:
    
    IOException - on error
  - getStreamBytesRaw
```
public static byte[] getStreamBytesRaw(PRStream stream,
                                       RandomAccessFileOrArray file)
                                throws IOException
```
    Get the content from a stream as it is without applying any filter.
    
    Parameters:
    
    stream - the stream
    
    file - the location where the stream is
    
    Returns:
    
    the stream content
    
    Throws:
    
    IOException - on error
  - getStreamBytesRaw
```
public static byte[] getStreamBytesRaw(PRStream stream)
                                throws IOException
```
    Get the content from a stream as it is without applying any filter.
    
    Parameters:
    
    stream - the stream
    
    Returns:
    
    the stream content
    
    Throws:
    
    IOException - on error
  - eliminateSharedStreams
```
public void eliminateSharedStreams()
```
    Eliminates shared streams if they exist.
  - isTampered
```
public boolean isTampered()
```
    Checks if the document was changed.
    
    Returns:
    
    true if the document was changed, false otherwise
  - setTampered
```
public void setTampered(boolean tampered)
```
    Sets the tampered state. A tampered PdfReader cannot be reused in PdfStamper.
    
    Parameters:
    
    tampered - the tampered state
  - getMetadata
```
public byte[] getMetadata()
                   throws IOException
```
    Gets the XML metadata.
    
    Returns:
    
    the XML metadata
    
    Throws:
    
    IOException - on error
  - getLastXref
```
public int getLastXref()
```
    Gets the byte address of the last xref table.
    
    Returns:
    
    the byte address of the last xref table
  - getXrefSize
```
public int getXrefSize()
```
    Gets the number of xref objects.
    
    Returns:
    
    the number of xref objects
  - getEofPos
```
public int getEofPos()
```
    Gets the byte address of the %%EOF marker.
    
    Returns:
    
    the byte address of the %%EOF marker
  - getPdfVersion
```
public char getPdfVersion()
```
    Gets the PDF version. Only the last version char is returned. For example version 1.4 is returned as '4'.
    
    Returns:
    
    the PDF version
  - isEncrypted
```
public boolean isEncrypted()
```
    Returns true if the PDF is encrypted.
    
    Returns:
    
    true if the PDF is encrypted
  - getPermissions
```
public int getPermissions()
```
    Gets the encryption permissions. It can be used directly in PdfWriter.setEncryption().
    
    Returns:
    
    the encryption permissions
  - is128Key
```
public boolean is128Key()
```
    Returns true if the PDF has a 128 bit key encryption.
    
    Returns:
    
    true if the PDF has a 128 bit key encryption
  - getTrailer
```
public PdfDictionary getTrailer()
```
    Gets the trailer dictionary
    
    Returns:
    
    the trailer dictionary
  - shuffleSubsetNames
```
public int shuffleSubsetNames()
```
    Finds all the font subsets and changes the prefixes to some random values.
    
    Returns:
    
    the number of font subsets altered
  - createFakeFontSubsets
```
public int createFakeFontSubsets()
```
    Finds all the fonts not subset but embedded and marks them as subset.
    
    Returns:
    
    the number of fonts altered
  - getNamedDestination
```
public HashMap<Object,PdfObject> getNamedDestination()
```
    Gets all the named destinations as an HashMap. The key is the name and the value is the destinations array.
    
    Returns:
    
    gets all the named destinations
  - getNamedDestination
```
public HashMap<Object,PdfObject> getNamedDestination(boolean keepNames)
```
    Gets all the named destinations as an HashMap. The key is the name and the value is the destinations array.
    
    Parameters:
    
    keepNames - true if you want the keys to be real PdfNames instead of Strings
    
    Returns:
    
    gets all the named destinations
    
    Since:
    
    2.1.6
  - getNamedDestinationFromNames
```
public HashMap getNamedDestinationFromNames()
```
    Gets the named destinations from the /Dests key in the catalog as an HashMap. The key is the name and the value is the destinations array.
    
    Returns:
    
    gets the named destinations
  - getNamedDestinationFromNames
```
public HashMap<Object,PdfObject> getNamedDestinationFromNames(boolean keepNames)
```
    Gets the named destinations from the /Dests key in the catalog as an HashMap. The key is the name and the value is the destinations array.
    
    Parameters:
    
    keepNames - true if you want the keys to be real PdfNames instead of Strings
    
    Returns:
    
    gets the named destinations
    
    Since:
    
    2.1.6
  - getNamedDestinationFromStrings
```
public HashMap getNamedDestinationFromStrings()
```
    Gets the named destinations from the /Names key in the catalog as an HashMap. The key is the name and the value is the destinations array.
    
    Returns:
    
    gets the named destinations
  - removeFields
```
public void removeFields()
```
    Removes all the fields from the document.
  - removeAnnotations
```
public void removeAnnotations()
```
    Removes all the annotations and fields from the document.
  - getLinks
```
public ArrayList<PdfAnnotation.PdfImportedLink> getLinks(int page)
```
  - makeRemoteNamedDestinationsLocal
```
public void makeRemoteNamedDestinationsLocal()
```
    Replaces remote named links with local destinations that have the same name.
    
    Since:
    
    5.0
  - consolidateNamedDestinations
```
public void consolidateNamedDestinations()
```
    Replaces all the local named links with the actual destinations.
  - duplicatePdfDictionary
```
protected static PdfDictionary duplicatePdfDictionary(PdfDictionary original,
                                                      PdfDictionary copy,
                                                      PdfReader newReader)
```
  - duplicatePdfObject
```
protected static PdfObject duplicatePdfObject(PdfObject original,
                                              PdfReader newReader)
```
  - close
```
public void close()
```
    Closes the reader
    
    Specified by:
    
    close in interface Closeable
    
    Specified by:
    
    close in interface AutoCloseable
  - removeUnusedNode
```
protected void removeUnusedNode(PdfObject obj,
                                boolean[] hits)
```
  - removeUnusedObjects
```
public int removeUnusedObjects()
```
    Removes all the unreachable objects.
    
    Returns:
    
    the number of indirect objects removed
  - getAcroFields
```
public AcroFields getAcroFields()
```
    Gets a read-only version of AcroFields.
    
    Returns:
    
    a read-only version of AcroFields
  - getJavaScript
```
public String getJavaScript(RandomAccessFileOrArray file)
                     throws IOException
```
    Gets the global document JavaScript.
    
    Parameters:
    
    file - the document file
    
    Returns:
    
    the global document JavaScript
    
    Throws:
    
    IOException - on error
  - getJavaScript
```
public String getJavaScript()
                     throws IOException
```
    Gets the global document JavaScript.
    
    Returns:
    
    the global document JavaScript
    
    Throws:
    
    IOException - on error
  - selectPages
```
public void selectPages(String ranges)
```
    Selects the pages to keep in the document. The pages are described as ranges. The page ordering can be changed but no page repetitions are allowed. Note that it may be very slow in partial mode.
    
    Parameters:
    
    ranges - the comma separated ranges as described in SequenceList
  - selectPages
```
public void selectPages(List<Integer> pagesToKeep)
```
    Selects the pages to keep in the document. The pages are described as a List of Integer. The page ordering can be changed but no page repetitions are allowed. Note that it may be very slow in partial mode.
    
    Parameters:
    
    pagesToKeep - the pages to keep in the document
  - setViewerPreferences
```
public void setViewerPreferences(int preferences)
```
    Sets the viewer preferences as the sum of several constants.
    
    Specified by:
    
    setViewerPreferences in interface PdfViewerPreferences
    
    Parameters:
    
    preferences - the viewer preferences
    
    See Also:
    
    PdfViewerPreferences.setViewerPreferences(int)
  - addViewerPreference
```
public void addViewerPreference(PdfName key,
                                PdfObject value)
```
    Adds a viewer preference
    
    Specified by:
    
    addViewerPreference in interface PdfViewerPreferences
    
    Parameters:
    
    key - a key for a viewer preference
    
    value - a value for the viewer preference
    
    See Also:
    
    PdfViewerPreferences.addViewerPreference(com.lowagie.text.pdf.PdfName, com.lowagie.text.pdf.PdfObject)
  - getSimpleViewerPreferences
```
public int getSimpleViewerPreferences()
```
    Returns a bitset representing the PageMode and PageLayout viewer preferences. Doesn't return any information about the ViewerPreferences dictionary.
    
    Returns:
    
    an int that contains the Viewer Preferences.
  - isAppendable
```
public boolean isAppendable()
```
    Getter for property appendable.
    
    Returns:
    
    Value of property appendable.
  - setAppendable
```
public void setAppendable(boolean appendable)
```
    Setter for property appendable.
    
    Parameters:
    
    appendable - New value of property appendable.
  - isNewXrefType
```
public boolean isNewXrefType()
```
    Getter for property newXrefType.
    
    Returns:
    
    Value of property newXrefType.
  - getFileLength
```
public int getFileLength()
```
    Getter for property fileLength.
    
    Returns:
    
    Value of property fileLength.
  - isHybridXref
```
public boolean isHybridXref()
```
    Getter for property hybridXref.
    
    Returns:
    
    Value of property hybridXref.
  - removeUsageRights
```
public void removeUsageRights()
```
    Removes any usage rights that this PDF may have. Only Adobe can grant usage rights and any PDF modification with iText will invalidate them. Invalidated usage rights may confuse Acrobat and it's advisable to remove them altogether.
  - getCertificationLevel
```
public int getCertificationLevel()
```
    Gets the certification level for this document. The return values can be PdfSignatureAppearance.NOT_CERTIFIED, PdfSignatureAppearance.CERTIFIED_NO_CHANGES_ALLOWED, PdfSignatureAppearance.CERTIFIED_FORM_FILLING and PdfSignatureAppearance.CERTIFIED_FORM_FILLING_AND_ANNOTATIONS .
    No signature validation is made, use the methods available for that in AcroFields.
    
    Returns:
    
    gets the certification level for this document
  - isModificationlowedWithoutOwnerPassword
```
public boolean isModificationlowedWithoutOwnerPassword()
```
    Checks if an encrypted document may be modified if the owner password was not supplied. If the document is not encrypted, the setting has no effect.
    
    Returns:
    
    true if the document may be modified even if the owner password was not supplied false otherwise
  - setModificationAllowedWithoutOwnerPassword
```
public void setModificationAllowedWithoutOwnerPassword(boolean modificationAllowedWithoutOwnerPassword)
```
    Sets whether the document (if encrypted) may be modified even if the owner password was not supplied. If this is set to false an exception will be thrown when attempting to access the Document if the owner password was not supplied (for encrypted documents.)
    
    Parameters:
    
    modificationAllowedWithoutOwnerPassword - the modificationAllowedWithoutOwnerPassword state.
  - isOpenedWithFullPermissions
```
public final 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. If the document is not encrypted it will return true.
    
    Returns:
    
    true if the document was opened with the owner password or if it's not encrypted or the modificationAllowedWithoutOwnerPassword flag is set, false otherwise.
  - getCryptoMode
```
public int getCryptoMode()
```
  - isMetadataEncrypted
```
public boolean isMetadataEncrypted()
```
  - computeUserPassword
```
public byte[] computeUserPassword()
```

Class PdfReader

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

tokens

xref

objStmMark

objStmToOffset

newXrefType

trailer

catalog

pageRefs

acroForm

acroFormParsed

encrypted

rebuilt

freeXref

tampered

lastXref

eofPos

pdfVersion

decrypt

password

certificateKey

certificate

certificateKeyProvider

strings

sharedStreams

consolidateNamedDestinations

remoteToLocalNamedDestinations

rValue

pValue

Constructor Detail

PdfReader

PdfReader

PdfReader

PdfReader

PdfReader

PdfReader

PdfReader

PdfReader

PdfReader

PdfReader

PdfReader

PdfReader

Method Detail

getSafeFile

getPdfReaderInstance

getNumberOfPages

getCatalog

getAcroForm

getPageRotation

getPageSizeWithRotation

getPageSizeWithRotation

getPageSize

getPageSize

getCropBox

getBoxSize

getInfo

getNormalizedRectangle

readPdf

readPdfPartial

getPdfObjectRelease

getPdfObject

getPdfObjectRelease

getPdfObject

getPdfObjectRelease

getPdfObject

resetLastXrefPartial

releaseLastXrefPartial

releaseLastXrefPartial

addPdfObject

readPages

readDocObjPartial

readSingleObject

readOneObjStm

dumpPerc

readDocObj