> For the complete documentation index, see [llms.txt](https://mostafaznv.gitbook.io/pdf-optimizer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mostafaznv.gitbook.io/pdf-optimizer/advanced-usage/configuring-ghostscript/monoimageresolution.md).

# MonoImageResolution

| Method Name         | Argument Name | Argument Type |
| ------------------- | ------------- | ------------- |
| monoImageResolution | resolution    | integer       |

Specifies the resolution to which downsampled monochrome images are reduced; <mark style="color:red;">valid values are 9 to 2400 pixels per inch.</mark>

A monochrome image is downsampled if <mark style="color:red;">DownsampleMonoImages</mark> is <mark style="color:red;">true</mark> and the resolution of the input image meets the criteria