Class FilterHandlers

java.lang.Object

com.itextpdf.text.pdf.FilterHandlers

public final class FilterHandlers
extends Object

Encapsulates filter behavior for PDF streams. Classes generally interace with this using the static getDefaultFilterHandlers() method, then obtain the desired FilterHandlers.FilterHandler via a lookup.

Since:

5.0.4

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	FilterHandlers.Filter_ASCII85DECODE	Handles ASCIIHEXDECODE filter
private static class	FilterHandlers.Filter_ASCIIHEXDECODE	Handles ASCIIHEXDECODE filter
private static class	FilterHandlers.Filter_CCITTFAXDECODE	Handles CCITTFAXDECODE filter
private static class	FilterHandlers.Filter_DoNothing	A filter that doesn't modify the stream at all
private static class	FilterHandlers.Filter_FLATEDECODE	Handles FLATEDECODE filter
private static class	FilterHandlers.Filter_LZWDECODE	Handles LZWDECODE filter
private static class	FilterHandlers.Filter_RUNLENGTHDECODE	Handles RUNLENGTHDECODE filter
static interface	FilterHandlers.FilterHandler	The main interface for creating a new FilterHandlers.FilterHandler

Field Summary

Fields

Modifier and Type	Field	Description
private static final Map<PdfName, FilterHandlers.FilterHandler>	defaults	The default FilterHandlers.FilterHandlers used by iText

Constructor Summary

Constructors

Constructor	Description
FilterHandlers()

Method Summary

Modifier and Type	Method	Description
static ByteArrayOutputStream	enableMemoryLimitsAwareHandler(PdfDictionary streamDictionary)	Creates a MemoryLimitsAwareOutputStream which will be used for decompression of the passed pdf stream.
static Map<PdfName, FilterHandlers.FilterHandler>	getDefaultFilterHandlers()

Methods inherited from class Object

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

Field Details

defaults

private static final Map<PdfName, FilterHandlers.FilterHandler> defaults

The default FilterHandlers.FilterHandlers used by iText

Constructor Details

FilterHandlers

public FilterHandlers()

Method Details

getDefaultFilterHandlers

public static Map<PdfName, FilterHandlers.FilterHandler> getDefaultFilterHandlers()

Returns:

the default FilterHandlers.FilterHandlers used by iText

enableMemoryLimitsAwareHandler

public static ByteArrayOutputStream enableMemoryLimitsAwareHandler(PdfDictionary streamDictionary)

Creates a MemoryLimitsAwareOutputStream which will be used for decompression of the passed pdf stream.

Parameters:

streamDictionary - the pdf stream which is going to be decompressed.

Returns:

the ByteArrayOutputStream which will be used for decompression of the passed pdf stream