Package com.itextpdf.kernel.pdf.filters

Class LZWDecodeFilter

java.lang.Object

com.itextpdf.kernel.pdf.MemoryLimitsAwareFilter

com.itextpdf.kernel.pdf.filters.LZWDecodeFilter

All Implemented Interfaces:

IFilterHandler

       public class LZWDecodeFilter extends MemoryLimitsAwareFilter
      

Handles LZWDECODE filter

Constructor Summary

Constructors

Constructor	Description
LZWDecodeFilter()

Method Summary

Modifier and Type	Method	Description
byte[]	decode(byte[] b, PdfName filterName, PdfObject decodeParams, PdfDictionary streamDictionary)	Decode the byte[] using the provided filterName.
static byte[]	LZWDecode(byte[] in)	Decodes a byte[] according to the LZW encoding.

Methods inherited from class com.itextpdf.kernel.pdf.MemoryLimitsAwareFilter

enableMemoryLimitsAwareHandler

Methods inherited from class java.lang.Object

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

Constructor Details

LZWDecodeFilter

             public LZWDecodeFilter()
            

Method Details

LZWDecode

             public static byte[] LZWDecode
             (byte[] in)
            

Decodes a byte[] according to the LZW encoding.

Parameters:

in - byte[] to be decoded

Returns:

decoded byte[]

decode

             public byte[] decode
             (byte[] b, PdfName filterName, PdfObject decodeParams, PdfDictionary streamDictionary)
            

Decode the byte[] using the provided filterName.

Parameters:

b - the bytes that need to be decoded

filterName - PdfName of the filter

decodeParams - decode parameters

streamDictionary - the dictionary of the stream. Can contain additional information needed to decode the byte[].

Returns:

decoded byte array