# --bmp-pixel-format

Source: https://zshot-cli.com/reference/flags/image/bmp-pixel-format/
Markdown: https://zshot-cli.com/reference/flags/image/bmp-pixel-format/index.md
Section: [Reference](https://zshot-cli.com/reference/) › [Flags](https://zshot-cli.com/reference/flags/) › [Image](https://zshot-cli.com/reference/flags/image/)
CLI: `--bmp-pixel-format` · REST: [`bmp_pixel_format`](https://zshot-cli.com/reference/server/api/schema/#bmp_pixel_format)
Value: `FORMAT` · Default: `bgr24`

Sets the pixel layout of [BMP](/reference/formats/bmp) output.

| Value | Bits | Layout |
| ----- | :--: | ------ |
| `bgr24` | 24 | 8 blue / 8 green / 8 red |
| `rgb565le` | 16 | 5 red / 6 green / 5 blue, little-endian |
| `gray8` | 8 | Grayscale |

## Example

**CLI**

```sh
zshot -f page.bmp \
  --bmp-pixel-format gray8 \
  https://zshot-cli.com/example_assets/hello_zshot/
```

**JSON** — `POST /` body for the [API](/reference/server/api), Pro license

```json
{
  "url": "https://zshot-cli.com/example_assets/hello_zshot/",
  "output_type": "bmp",
  "bmp_pixel_format": "gray8"
}
```

**curl**

```sh
curl -X POST http://127.0.0.1:3000/ \
  -H "Content-Type: application/json" \
  -d '{"url":"https://zshot-cli.com/example_assets/hello_zshot/","output_type":"bmp","bmp_pixel_format":"gray8"}' \
  -o page.bmp
```

## Related

Topics:

- [BMP](https://zshot-cli.com/reference/formats/bmp/)

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