FilterHandlers

java.lang.Object
- com.itextpdf.text.pdf.FilterHandlers

```
public final class FilterHandlers
extends java.lang.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 java.util.Map<PdfName,FilterHandlers.FilterHandler> defaults
The default FilterHandlers.FilterHandlers used by iText

Constructor Summary

Constructors
Constructor Description

FilterHandlers()

Method Summary

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

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - defaults
```
private static final java.util.Map<PdfName,FilterHandlers.FilterHandler> defaults
```
    The default FilterHandlers.FilterHandlers used by iText
- Constructor Detail
  - FilterHandlers
```
public FilterHandlers()
```
- Method Detail
  - getDefaultFilterHandlers
```
public static java.util.Map<PdfName,FilterHandlers.FilterHandler> getDefaultFilterHandlers()
```
    Returns:
    
    the default FilterHandlers.FilterHandlers used by iText
  - enableMemoryLimitsAwareHandler
```
public static java.io.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