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# BwPictureFormatsEnum

BwPictureFormatsEnum enumeration constants define the image formats or compression algorithms to be used when saving black-and-white images.

```
typedef enum {
 BWPF_CCITT4 = 0x00000001,
 BWPF_JBIG2 = 0x00000002,
 BWPF_JBIG2Lossless = 0x00000004,
 BWPF_Auto  = 0x00000008
} BwPictureFormatsEnum;
```

## Elements

| Name                  | Description                                   |
| --------------------- | --------------------------------------------- |
| BWPF\\\_Auto          | The format is defined automatically.          |
| BWPF\\\_CCITT4        | CCITT4 compression algorithm.                 |
| BWPF\\\_JBIG2         | JBIG2 compression algorithm in lossy mode.    |
| BWPF\\\_JBIG2Lossless | JBIG2 compression algorithm in lossless mode. |

## Used in

[IPDFPictureCompressionParams::BwPictureFormats](/fine-reader/engine/api-reference/parameter-objects/export-parameters/pdfpicturecompressionparams#bwpictureformats)