Package com.itextpdf.kernel.pdf

Class PdfOutputStream

java.lang.Object

java.io.OutputStream

com.itextpdf.io.source.HighPrecisionOutputStream<PdfOutputStream>

com.itextpdf.kernel.pdf.PdfOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

Direct Known Subclasses:

PdfWriter

       public class PdfOutputStream extends HighPrecisionOutputStream<PdfOutputStream>
      

Field Summary

Fields

Modifier and Type	Field	Description
protected PdfEncryption	crypto	Contains the business logic for cryptography.
protected PdfDocument	document	Document associated with PdfOutputStream.

Fields inherited from class com.itextpdf.io.source.HighPrecisionOutputStream

closeStream, currentPos, outputStream

Constructor Summary

Constructors

Constructor	Description
PdfOutputStream(OutputStream outputStream)	Create a pdfOutputSteam writing to the passed OutputStream.

Method Summary

Modifier and Type	Method	Description
protected boolean	checkEncryption(PdfStream pdfStream)
protected boolean	containsFlateFilter(PdfStream pdfStream)
protected byte[]	decodeFlateBytes(PdfStream stream, byte[] bytes)
protected void	updateCompressionFilter(PdfStream pdfStream)
protected void	updateCryptFilterForEmbeddedFilesOnlyMode(PdfStream pdfStream)	Adds required Filter and DecodeParms to the pdf stream if the stream is embedded file stream and only embedded files are expected to be encrypted.
PdfOutputStream	write(PdfObject pdfObject)	Write a PdfObject to the outputstream.

Methods inherited from class com.itextpdf.io.source.HighPrecisionOutputStream

assignBytes, close, flush, getCurrentPos, getHighPrecision, getLocalHighPrecision, getOutputStream, isCloseStream, reset, setCloseStream, setHighPrecision, setLocalHighPrecision, write, write, write, writeByte, writeByte, writeBytes, writeBytes, writeDouble, writeDouble, writeFloat, writeFloat, writeFloats, writeInteger, writeLong, writeNewLine, writeSpace, writeString

Methods inherited from class java.io.OutputStream

nullOutputStream

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

document

             protected PdfDocument document
            

Document associated with PdfOutputStream.

crypto

             protected PdfEncryption crypto
            

Contains the business logic for cryptography.

Constructor Details

PdfOutputStream

             public PdfOutputStream
             (OutputStream outputStream)
            

Create a pdfOutputSteam writing to the passed OutputStream.

Parameters:

outputStream - Outputstream to write to.

Method Details

write

             public PdfOutputStream write
             (PdfObject pdfObject)
            

Write a PdfObject to the outputstream.

Parameters:

pdfObject - PdfObject to write

Returns:

this PdfOutPutStream

checkEncryption

             protected boolean checkEncryption
             (PdfStream pdfStream)
            

containsFlateFilter

             protected boolean containsFlateFilter
             (PdfStream pdfStream)
            

updateCompressionFilter

             protected void updateCompressionFilter
             (PdfStream pdfStream)
            

updateCryptFilterForEmbeddedFilesOnlyMode

             protected void updateCryptFilterForEmbeddedFilesOnlyMode
             (PdfStream pdfStream)
            

Adds required Filter and DecodeParms to the pdf stream if the stream is embedded file stream and only embedded files are expected to be encrypted. See EncryptionConstants.EMBEDDED_FILES_ONLY.

Parameters:

pdfStream - embedded file pdf stream.

decodeFlateBytes

             protected byte[] decodeFlateBytes
             (PdfStream stream, byte[] bytes)