# PDFlattenerMonochromeCompSet Enum

> Enumeration for setting the compression scheme for the Flattened Monochrome images.

- Product: Adobe PDF Library 21
- Language: .NET Framework
- Version: APDFL21.0.0PlusP1e
- HTML page: https://docs.datalogics.com/apdfl21/DotNetFramework/APDFL21.0.0PlusP1e/enum/PDFlattenerMonochromeCompSet
- Version index: https://docs.datalogics.com/apdfl21/DotNetFramework/APDFL21.0.0PlusP1e/llms.txt

**Namespace:** `Datalogics::PDFL`

## Description

Enumeration for setting the compression scheme for the Flattened Monochrome images.

## Values

- `KPDFlattenerMonoCCITTGroup3Compression = 0`: CCITT Group 3 (fax) compression for flattened monochrome images.
- `KPDFlattenerMonoCCITTGroup4Compression = 1`: CCITT Group 4 (fax) compression for flattened monochrome images.
- `KPDFlattenerMonoZipCompression = 2`: ZIP (Flate) compression for flattened monochrome images.
- `KPDFlattenerMonoRunLengthCompression = 3`: Run-length encoding compression for flattened monochrome images.