Package com.itextpdf.kernel.pdf.filters
Class LZWDecodeFilter
- java.lang.Object
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- com.itextpdf.kernel.pdf.MemoryLimitsAwareFilter
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- com.itextpdf.kernel.pdf.filters.LZWDecodeFilter
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- All Implemented Interfaces:
IFilterHandler
public class LZWDecodeFilter extends MemoryLimitsAwareFilter
Handles LZWDECODE filter
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Constructor Summary
Constructors Constructor Description LZWDecodeFilter()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods 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.private static byte[]
LZWDecodeInternal(byte[] in, java.io.ByteArrayOutputStream out)
Decodes a byte[] according to the LZW encoding.-
Methods inherited from class com.itextpdf.kernel.pdf.MemoryLimitsAwareFilter
enableMemoryLimitsAwareHandler
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Method Detail
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LZWDecode
public static byte[] LZWDecode(byte[] in)
Decodes a byte[] according to the LZW encoding.- Parameters:
in
- byte[] to be decoded- Returns:
- decoded byte[]
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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 decodedfilterName
- PdfName of the filterdecodeParams
- decode parametersstreamDictionary
- the dictionary of the stream. Can contain additional information needed to decode the byte[].- Returns:
- decoded byte array
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LZWDecodeInternal
private static byte[] LZWDecodeInternal(byte[] in, java.io.ByteArrayOutputStream out)
Decodes a byte[] according to the LZW encoding.- Parameters:
in
- byte[] to be decodedout
- the out stream which will be used to write the bytes.- Returns:
- decoded byte[]
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