Filter

All Known Implementing Classes:

ASCII85Filter, FlateFilter
```
public interface Filter
```
A filter that can be used to encode stream data in PDF output.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`byte[]`	`encode(byte[] source)`	Apply the encoding to the bytes in `source` and return the encoded data in a new array.
`FilterType`	`getFilterType()`	Returns the filter type.

- Method Detail
  - getFilterType
```
FilterType getFilterType()
```
    Returns the filter type.
    
    Returns:
    
    The filter type (never null).
  - encode
```
byte[] encode(byte[] source)
```
    Apply the encoding to the bytes in source and return the encoded data in a new array.
    
    Parameters:
    
    source - the source (null not permitted).
    
    Returns:
    
    The encoded bytes.