Package com.aowagie.text.pdf
Class PdfReader
- java.lang.Object
-
- com.aowagie.text.pdf.PdfReader
-
- All Implemented Interfaces:
PdfViewerPreferences
- Direct Known Subclasses:
FdfReader
public class PdfReader extends java.lang.Object implements PdfViewerPreferences
Reads a PDF document.
-
-
Nested Class Summary
Nested Classes Modifier and Type Class Description (package private) static class
PdfReader.PageRefs
-
Field Summary
Fields Modifier and Type Field Description private PRAcroForm
acroForm
private boolean
acroFormParsed
private boolean
appendable
Holds value of property appendable.protected PdfDictionary
catalog
private java.security.cert.Certificate
certificate
private java.security.Key
certificateKey
private java.lang.String
certificateKeyProvider
private boolean
consolidateNamedDestinations
private PRIndirectReference
cryptoRef
private PdfEncryption
decrypt
private boolean
encrypted
private boolean
encryptionError
private static byte[]
endobj
private static byte[]
endstream
private int
eofPos
private int
fileLength
private int
freeXref
private boolean
hybridXref
private int
lastXref
private int
lastXrefPartial
private boolean
newXrefType
private int
objGen
private int
objNum
private java.util.HashMap
objStmMark
private IntHashtable
objStmToOffset
private boolean
ownerPasswordUsed
private static PdfName[]
pageInhCandidates
(package private) PdfReader.PageRefs
pageRefs
private boolean
partial
private byte[]
password
private char
pdfVersion
private int
pValue
private int
readDepth
private boolean
rebuilt
private PdfDictionary
rootPages
private int
rValue
private boolean
sharedStreams
private java.util.ArrayList
strings
private boolean
tampered
protected PRTokeniser
tokens
protected PdfDictionary
trailer
private PdfViewerPreferencesImp
viewerPreferences
private int[]
xref
private java.util.ArrayList
xrefObj
-
Constructor Summary
Constructors Modifier Constructor Description protected
PdfReader()
PdfReader(byte[] pdfIn)
Reads and parses a PDF document.PdfReader(byte[] pdfIn, byte[] ownerPassword)
Reads and parses a PDF document.(package private)
PdfReader(PdfReader reader)
Creates an independent duplicate.PdfReader(java.io.InputStream is)
Reads and parses a PDF document.private
PdfReader(java.io.InputStream is, byte[] ownerPassword)
Reads and parses a PDF document.PdfReader(java.lang.String filename)
Reads and parses a PDF document.private
PdfReader(java.lang.String filename, byte[] ownerPassword)
Reads and parses a PDF document.PdfReader(java.lang.String filename, java.security.cert.Certificate certificate, java.security.Key certificateKey, java.lang.String certificateKeyProvider)
Reads and parses a PDF document.private
PdfReader(java.net.URL url, byte[] ownerPassword)
Reads and parses a PDF document.
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description PRIndirectReference
addPdfObject(PdfObject obj)
void
addViewerPreference(PdfName key, PdfObject value)
Adds a viewer preferenceprivate static byte[]
ASCII85Decode(byte[] in)
Decodes a stream that has the ASCII85Decode filter.private static byte[]
ASCIIHexDecode(byte[] in)
Decodes a stream that has the ASCIIHexDecode filter.private void
checkPRStreamLength(PRStream stream)
void
close()
Closes the reader(package private) void
consolidateNamedDestinations()
Replaces all the local named links with the actual destinations.private static byte[]
decodePredictor(byte[] in, PdfObject dicPar)
private static PdfDictionary
duplicatePdfDictionary(PdfDictionary original, PdfDictionary copy, PdfReader newReader)
private static PdfObject
duplicatePdfObject(PdfObject original, PdfReader newReader)
private void
eliminateSharedStreams()
Eliminates shared streams if they exist.private void
ensureXrefSize(int size)
private boolean
equalsArray(byte[] ar1, byte[] ar2, int size)
private static boolean
equalsn(byte[] a1, byte[] a2)
private static boolean
existsName(PdfDictionary dic, PdfName key, PdfName value)
private 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 ofAcroFields
.PRAcroForm
getAcroForm()
Returns the document's acroform, if it has one.(package private) Rectangle
getBoxSize(int index, java.lang.String boxName)
Gets the box size.PdfDictionary
getCatalog()
Returns the document's catalog.int
getCertificationLevel()
Gets the certification level for this document.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.private static java.lang.String
getFontName(PdfDictionary dic)
java.util.HashMap
getInfo()
Returns the content of the document information dictionary as aHashMap
ofString
.java.lang.String
getJavaScript()
Gets the global document JavaScript.private java.lang.String
getJavaScript(RandomAccessFileOrArray file)
Gets the global document JavaScript.int
getLastXref()
Gets the byte address of the last xref table.byte[]
getMetadata()
Gets the XML metadata.private static PdfArray
getNameArray(PdfObject obj)
java.util.HashMap
getNamedDestination()
Gets all the named destinations as anHashMap
.private java.util.HashMap
getNamedDestination(boolean keepNames)
Gets all the named destinations as anHashMap
.java.util.HashMap
getNamedDestinationFromNames()
Gets the named destinations from the /Dests key in the catalog as anHashMap
.private java.util.HashMap
getNamedDestinationFromNames(boolean keepNames)
Gets the named destinations from the /Dests key in the catalog as anHashMap
.java.util.HashMap
getNamedDestinationFromStrings()
Gets the named destinations from the /Names key in the catalog as anHashMap
.(package private) static Rectangle
getNormalizedRectangle(PdfArray box)
Normalizes aRectangle
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, 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.int
getPageRotation(PdfDictionary page)
Rectangle
getPageSize(int index)
Gets the page size without taking rotation into account.private Rectangle
getPageSize(PdfDictionary page)
Gets the page from a page dictionaryRectangle
getPageSizeWithRotation(int index)
Gets the page size, taking rotation into account.(package private) Rectangle
getPageSizeWithRotation(PdfDictionary page)
Gets the rotated page from a page dictionary.PdfObject
getPdfObject(int idx)
static PdfObject
getPdfObject(PdfObject obj)
Reads aPdfObject
resolving an indirect reference if needed.(package private) static PdfObject
getPdfObject(PdfObject obj, PdfObject parent)
(package private) PdfObject
getPdfObjectRelease(int idx)
static PdfObject
getPdfObjectRelease(PdfObject obj)
(package private) static PdfObject
getPdfObjectRelease(PdfObject obj, PdfObject parent)
Reads aPdfObject
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.private static byte[]
getStreamBytes(PRStream stream, RandomAccessFileOrArray file)
Get the content from a stream applying the required filters.(package private) static byte[]
getStreamBytesRaw(PRStream stream)
Get the content from a stream as it is without applying any filter.private static byte[]
getStreamBytesRaw(PRStream stream, RandomAccessFileOrArray file)
Get the content from a stream as it is without applying any filter.private static java.lang.String
getSubsetPrefix(PdfDictionary dic)
PdfDictionary
getTrailer()
Gets the trailer dictionaryint
getXrefSize()
Gets the number of xref objects.boolean
isAppendable()
Getter for property appendable.boolean
isEncrypted()
Returnstrue
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, java.util.HashMap names)
(package private) 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)
private static byte[]
LZWDecode(byte[] in)
Decodes a stream that has the LZWDecode filter.private PdfArray
readArray()
private void
readDecryptedDocObj()
private PdfDictionary
readDictionary()
protected void
readDocObj()
private void
readDocObjPartial()
private void
readObjStm(PRStream stream, IntHashtable map)
private PdfObject
readOneObjStm(PRStream stream, int idx)
protected void
readPages()
protected void
readPdf()
private void
readPdfPartial()
private PdfObject
readPRObject()
private PdfObject
readSingleObject(int k)
private void
readXref()
private PdfDictionary
readXrefSection()
private boolean
readXRefStream(int ptr)
protected void
rebuildXref()
private void
releaseLastXrefPartial()
(package private) static void
releaseLastXrefPartial(PdfObject obj)
void
releasePage(int pageNum)
(package private) void
removeFields()
Removes all the fields from the document.private void
removeUnusedNode(PdfObject obj, boolean[] hits)
private int
removeUnusedObjects()
Removes all the unreachable objects.void
removeUsageRights()
Removes any usage rights that this PDF may have.private boolean
replaceNamedDestination(PdfObject obj, java.util.HashMap names)
void
resetReleasePage()
(package private) void
selectPages(java.util.List pagesToKeep)
Selects the pages to keep in the document.void
setAppendable(boolean appendable)
Setter for property appendable.private 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)
(package private) int
shuffleSubsetNames()
Finds all the font subsets and changes the prefixes to some random values.
-
-
-
Field Detail
-
pageInhCandidates
private static final PdfName[] pageInhCandidates
-
endstream
private static final byte[] endstream
-
endobj
private static final byte[] endobj
-
tokens
protected PRTokeniser tokens
-
xref
private int[] xref
-
objStmMark
private java.util.HashMap objStmMark
-
objStmToOffset
private IntHashtable objStmToOffset
-
newXrefType
private boolean newXrefType
-
xrefObj
private java.util.ArrayList xrefObj
-
rootPages
private PdfDictionary rootPages
-
trailer
protected PdfDictionary trailer
-
catalog
protected PdfDictionary catalog
-
pageRefs
PdfReader.PageRefs pageRefs
-
acroForm
private PRAcroForm acroForm
-
acroFormParsed
private boolean acroFormParsed
-
encrypted
private boolean encrypted
-
rebuilt
private boolean rebuilt
-
freeXref
private int freeXref
-
tampered
private boolean tampered
-
lastXref
private int lastXref
-
eofPos
private int eofPos
-
pdfVersion
private char pdfVersion
-
decrypt
private PdfEncryption decrypt
-
password
private byte[] password
-
certificateKey
private java.security.Key certificateKey
-
certificate
private java.security.cert.Certificate certificate
-
certificateKeyProvider
private java.lang.String certificateKeyProvider
-
ownerPasswordUsed
private boolean ownerPasswordUsed
-
strings
private final java.util.ArrayList strings
-
sharedStreams
private boolean sharedStreams
-
consolidateNamedDestinations
private boolean consolidateNamedDestinations
-
rValue
private int rValue
-
pValue
private 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 final PdfViewerPreferencesImp viewerPreferences
-
encryptionError
private boolean encryptionError
-
appendable
private boolean appendable
Holds value of property appendable.
-
readDepth
private int readDepth
-
-
Constructor Detail
-
PdfReader
protected PdfReader()
-
PdfReader
public PdfReader(java.lang.String filename) throws java.io.IOException
Reads and parses a PDF document.- Parameters:
filename
- the file name of the document- Throws:
java.io.IOException
- on error
-
PdfReader
private PdfReader(java.lang.String filename, byte[] ownerPassword) throws java.io.IOException
Reads and parses a PDF document.- Parameters:
filename
- the file name of the documentownerPassword
- the password to read the document- Throws:
java.io.IOException
- on error
-
PdfReader
public PdfReader(byte[] pdfIn) throws java.io.IOException
Reads and parses a PDF document.- Parameters:
pdfIn
- the byte array with the document- Throws:
java.io.IOException
- on error
-
PdfReader
public PdfReader(byte[] pdfIn, byte[] ownerPassword) throws java.io.IOException
Reads and parses a PDF document.- Parameters:
pdfIn
- the byte array with the documentownerPassword
- the password to read the document- Throws:
java.io.IOException
- on error
-
PdfReader
public PdfReader(java.lang.String filename, java.security.cert.Certificate certificate, java.security.Key certificateKey, java.lang.String certificateKeyProvider) throws java.io.IOException
Reads and parses a PDF document.- Parameters:
filename
- the file name of the documentcertificate
- the certificate to read the documentcertificateKey
- the private key of the certificatecertificateKeyProvider
- the security provider for certificateKey- Throws:
java.io.IOException
- on error
-
PdfReader
private PdfReader(java.net.URL url, byte[] ownerPassword) throws java.io.IOException
Reads and parses a PDF document.- Parameters:
url
- the URL of the documentownerPassword
- the password to read the document- Throws:
java.io.IOException
- on error
-
PdfReader
private PdfReader(java.io.InputStream is, byte[] ownerPassword) throws java.io.IOException
Reads and parses a PDF document.- Parameters:
is
- theInputStream
containing the document. The stream is read to the end but is not closedownerPassword
- the password to read the document- Throws:
java.io.IOException
- on error
-
PdfReader
public PdfReader(java.io.InputStream is) throws java.io.IOException
Reads and parses a PDF document.- Parameters:
is
- theInputStream
containing the document. The stream is read to the end but is not closed- Throws:
java.io.IOException
- on error
-
PdfReader
PdfReader(PdfReader reader)
Creates an independent duplicate.- Parameters:
reader
- thePdfReader
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 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
-
getPageRotation
public int getPageRotation(PdfDictionary page)
-
getPageSizeWithRotation
public Rectangle getPageSizeWithRotation(int index)
Gets the page size, taking rotation into account. This is aRectangle
with the value of the /MediaBox and the /Rotate key.- Parameters:
index
- the page number. The first page is 1- Returns:
- a
Rectangle
.
-
getPageSizeWithRotation
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
private Rectangle getPageSize(PdfDictionary page)
Gets the page from a page dictionary- Parameters:
page
- the page dictionary- Returns:
- the page
-
getBoxSize
Rectangle getBoxSize(int index, java.lang.String boxName)
Gets the box size. Allowed names are: "crop", "trim", "art", "bleed" and "media".- Parameters:
index
- the page number. The first page is 1boxName
- the box name- Returns:
- the box rectangle or null
-
getInfo
public java.util.HashMap getInfo()
Returns the content of the document information dictionary as aHashMap
ofString
.- Returns:
- content of the document information dictionary
-
getNormalizedRectangle
static Rectangle getNormalizedRectangle(PdfArray box)
Normalizes aRectangle
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 java.io.IOException
- Throws:
java.io.IOException
-
readPdfPartial
private void readPdfPartial() throws java.io.IOException
- Throws:
java.io.IOException
-
equalsArray
private boolean equalsArray(byte[] ar1, byte[] ar2, int size)
-
readDecryptedDocObj
private void readDecryptedDocObj() throws java.io.IOException
- Throws:
java.io.IOException
-
getPdfObjectRelease
public static PdfObject getPdfObjectRelease(PdfObject obj)
- Parameters:
obj
- object to release- Returns:
- a PdfObject
-
getPdfObject
public static PdfObject getPdfObject(PdfObject obj)
Reads aPdfObject
resolving an indirect reference if needed.- Parameters:
obj
- thePdfObject
to read- Returns:
- the resolved
PdfObject
-
getPdfObjectRelease
static PdfObject getPdfObjectRelease(PdfObject obj, PdfObject parent)
Reads aPdfObject
resolving an indirect reference if needed. If the reader was opened in partial mode the object will be released to save memory.- Parameters:
obj
- thePdfObject
to readparent
-- Returns:
- a PdfObject
-
getPdfObject
static PdfObject getPdfObject(PdfObject obj, PdfObject parent)
- Parameters:
obj
-parent
-- Returns:
- a PdfObject
-
getPdfObjectRelease
PdfObject getPdfObjectRelease(int idx)
- Parameters:
idx
-- Returns:
- a PdfObject
-
getPdfObject
public PdfObject getPdfObject(int idx)
- Parameters:
idx
- index to get- Returns:
- aPdfObject returns a PdfObject
-
releaseLastXrefPartial
private void releaseLastXrefPartial()
-
releaseLastXrefPartial
static void releaseLastXrefPartial(PdfObject obj)
- Parameters:
obj
-
-
setXrefPartialObject
private void setXrefPartialObject(int idx, PdfObject obj)
-
addPdfObject
public PRIndirectReference addPdfObject(PdfObject obj)
- Parameters:
obj
- object to add- Returns:
- an indirect reference
-
readPages
protected void readPages() throws java.io.IOException
- Throws:
java.io.IOException
-
readDocObjPartial
private void readDocObjPartial() throws java.io.IOException
- Throws:
java.io.IOException
-
readSingleObject
private PdfObject readSingleObject(int k) throws java.io.IOException
- Throws:
java.io.IOException
-
readOneObjStm
private PdfObject readOneObjStm(PRStream stream, int idx) throws java.io.IOException
- Throws:
java.io.IOException
-
readDocObj
protected void readDocObj() throws java.io.IOException
- Throws:
java.io.IOException
-
checkPRStreamLength
private void checkPRStreamLength(PRStream stream) throws java.io.IOException
- Throws:
java.io.IOException
-
readObjStm
private void readObjStm(PRStream stream, IntHashtable map) throws java.io.IOException
- Throws:
java.io.IOException
-
killIndirect
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
-
ensureXrefSize
private void ensureXrefSize(int size)
-
readXref
private void readXref() throws java.io.IOException
- Throws:
java.io.IOException
-
readXrefSection
private PdfDictionary readXrefSection() throws java.io.IOException
- Throws:
java.io.IOException
-
readXRefStream
private boolean readXRefStream(int ptr) throws java.io.IOException
- Throws:
java.io.IOException
-
rebuildXref
protected void rebuildXref() throws java.io.IOException
- Throws:
java.io.IOException
-
readDictionary
private PdfDictionary readDictionary() throws java.io.IOException
- Throws:
java.io.IOException
-
readArray
private PdfArray readArray() throws java.io.IOException
- Throws:
java.io.IOException
-
readPRObject
private PdfObject readPRObject() throws java.io.IOException
- Throws:
java.io.IOException
-
FlateDecode
private static byte[] FlateDecode(byte[] in)
Decodes a stream that has the FlateDecode filter.- Parameters:
in
- the input data- Returns:
- the decoded data
-
decodePredictor
private static byte[] decodePredictor(byte[] in, PdfObject dicPar)
- Parameters:
in
-dicPar
-- Returns:
- a byte array
-
FlateDecode
public static byte[] FlateDecode(byte[] in, boolean strict)
A helper to FlateDecode.- Parameters:
in
- the input datastrict
-true
to read a correct stream.false
to try to read a corrupted stream- Returns:
- the decoded data
-
ASCIIHexDecode
private static byte[] ASCIIHexDecode(byte[] in)
Decodes a stream that has the ASCIIHexDecode filter.- Parameters:
in
- the input data- Returns:
- the decoded data
-
ASCII85Decode
private static byte[] ASCII85Decode(byte[] in)
Decodes a stream that has the ASCII85Decode filter.- Parameters:
in
- the input data- Returns:
- the decoded data
-
LZWDecode
private 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
- number of page- Returns:
- a Dictionary object
-
releasePage
public void releasePage(int pageNum)
- Parameters:
pageNum
- number of page
-
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 java.io.IOException
Gets the contents of the page.- Parameters:
pageNum
- the page number. 1 is the firstfile
- the location of the PDF document- Returns:
- the content
- Throws:
java.io.IOException
- on error
-
killXref
protected void killXref(PdfObject obj)
-
setPageContent
private void setPageContent(int pageNum, byte[] content, int compressionLevel)
Sets the contents of the page.- Parameters:
content
- the new page contentpageNum
- the page number. 1 is the first- Since:
- 2.1.3 (the method already existed without param compressionLevel)
-
getStreamBytes
private static byte[] getStreamBytes(PRStream stream, RandomAccessFileOrArray file) throws java.io.IOException
Get the content from a stream applying the required filters.- Parameters:
stream
- the streamfile
- the location where the stream is- Returns:
- the stream content
- Throws:
java.io.IOException
- on error
-
getStreamBytes
public static byte[] getStreamBytes(PRStream stream) throws java.io.IOException
Get the content from a stream applying the required filters.- Parameters:
stream
- the stream- Returns:
- the stream content
- Throws:
java.io.IOException
- on error
-
getStreamBytesRaw
private static byte[] getStreamBytesRaw(PRStream stream, RandomAccessFileOrArray file) throws java.io.IOException
Get the content from a stream as it is without applying any filter.- Parameters:
stream
- the streamfile
- the location where the stream is- Returns:
- the stream content
- Throws:
java.io.IOException
- on error
-
getStreamBytesRaw
static byte[] getStreamBytesRaw(PRStream stream) throws java.io.IOException
Get the content from a stream as it is without applying any filter.- Parameters:
stream
- the stream- Returns:
- the stream content
- Throws:
java.io.IOException
- on error
-
eliminateSharedStreams
private 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 java.io.IOException
Gets the XML metadata.- Returns:
- the XML metadata
- Throws:
java.io.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()
Returnstrue
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 inPdfWriter.setEncryption()
.- Returns:
- the encryption permissions
-
getTrailer
public PdfDictionary getTrailer()
Gets the trailer dictionary- Returns:
- the trailer dictionary
-
getDecrypt
PdfEncryption getDecrypt()
-
equalsn
private static boolean equalsn(byte[] a1, byte[] a2)
-
existsName
private static boolean existsName(PdfDictionary dic, PdfName key, PdfName value)
-
getFontName
private static java.lang.String getFontName(PdfDictionary dic)
-
getSubsetPrefix
private static java.lang.String getSubsetPrefix(PdfDictionary dic)
-
shuffleSubsetNames
int shuffleSubsetNames()
Finds all the font subsets and changes the prefixes to some random values.- Returns:
- the number of font subsets altered
-
getNamedDestination
public java.util.HashMap getNamedDestination()
Gets all the named destinations as anHashMap
. The key is the name and the value is the destinations array.- Returns:
- gets all the named destinations
-
getNamedDestination
private java.util.HashMap getNamedDestination(boolean keepNames)
Gets all the named destinations as anHashMap
. 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 java.util.HashMap getNamedDestinationFromNames()
Gets the named destinations from the /Dests key in the catalog as anHashMap
. The key is the name and the value is the destinations array.- Returns:
- gets the named destinations
-
getNamedDestinationFromNames
private java.util.HashMap getNamedDestinationFromNames(boolean keepNames)
Gets the named destinations from the /Dests key in the catalog as anHashMap
. 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 java.util.HashMap getNamedDestinationFromStrings()
Gets the named destinations from the /Names key in the catalog as anHashMap
. The key is the name and the value is the destinations array.- Returns:
- gets the named destinations
-
replaceNamedDestination
private boolean replaceNamedDestination(PdfObject obj, java.util.HashMap names)
-
removeFields
void removeFields()
Removes all the fields from the document.
-
iterateBookmarks
private void iterateBookmarks(PdfObject outlineRef, java.util.HashMap names)
-
consolidateNamedDestinations
void consolidateNamedDestinations()
Replaces all the local named links with the actual destinations.
-
duplicatePdfDictionary
private static PdfDictionary duplicatePdfDictionary(PdfDictionary original, PdfDictionary copy, PdfReader newReader)
-
duplicatePdfObject
private static PdfObject duplicatePdfObject(PdfObject original, PdfReader newReader)
-
close
public void close()
Closes the reader
-
removeUnusedNode
private void removeUnusedNode(PdfObject obj, boolean[] hits)
-
removeUnusedObjects
private int removeUnusedObjects()
Removes all the unreachable objects.- Returns:
- the number of indirect objects removed
-
getAcroFields
public AcroFields getAcroFields()
Gets a read-only version ofAcroFields
.- Returns:
- a read-only version of
AcroFields
-
getJavaScript
private java.lang.String getJavaScript(RandomAccessFileOrArray file) throws java.io.IOException
Gets the global document JavaScript.- Parameters:
file
- the document file- Returns:
- the global document JavaScript
- Throws:
java.io.IOException
- on error
-
getJavaScript
public java.lang.String getJavaScript() throws java.io.IOException
Gets the global document JavaScript.- Returns:
- the global document JavaScript
- Throws:
java.io.IOException
- on error
-
selectPages
void selectPages(java.util.List pagesToKeep)
Selects the pages to keep in the document. The pages are described as aList
ofInteger
. 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 interfacePdfViewerPreferences
- 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 interfacePdfViewerPreferences
- Parameters:
key
- a key for a viewer preferencevalue
- a value for the viewer preference- See Also:
PdfViewerPreferences.addViewerPreference(com.aowagie.text.pdf.PdfName, com.aowagie.text.pdf.PdfObject)
-
setViewerPreferences
void setViewerPreferences(PdfViewerPreferencesImp vp)
-
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.
-
getCryptoRef
PdfIndirectReference getCryptoRef()
-
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 bePdfSignatureAppearance.NOT_CERTIFIED
,PdfSignatureAppearance.CERTIFIED_NO_CHANGES_ALLOWED
,PdfSignatureAppearance.CERTIFIED_FORM_FILLING
andPdfSignatureAppearance.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
-
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 returntrue
.- Returns:
true
if the document was opened with the owner password or if it's not encrypted,false
if the document was opened with the user password
-
getCryptoMode
public int getCryptoMode()
-
isMetadataEncrypted
public boolean isMetadataEncrypted()
-
-