Filters
Table of Contents
Interfaces
- FilterInterface
- Symmetric encode/decode contract for PDF stream filters (ISO 32000-2 §7.4).
Classes
- Ascii85Filter
- ASCII85Decode — base-85 encoding for binary data (ISO 32000-2 §7.4.3).
- AsciiHexFilter
- ASCIIHexDecode — hex encoding for binary data (ISO 32000-2 §7.4.2).
- CCITTFaxFilter
- CCITTFaxDecode filter — ITU-T T.4 (Group 3) and T.6 (Group 4) fax codec.
- FlateFilter
- FlateDecode — zlib/deflate compression (ISO 32000-2 §7.4.4).
- Jbig2Filter
- JBIG2Decode filter — ISO 14492 / ITU-T T.88 codec.
- LzwFilter
- LZW filter — decode/encode per ISO 32000-2 §7.4.4.2.
- PredictorFilter
- PDF predictor filter — applies/removes PNG and TIFF prediction
as specified in ISO 32000-2 §7.4.4.4.
- RunLengthFilter
- RunLengthDecode — basic run-length encoding (ISO 32000-2 §7.4.5).