MonoImageFilter

monoImageFilter

Method Name	Argument Name	Argument Type
monoImageFilter	filter	Mostafaznv\PdfOptimizer\Enums\MonoImageFilter

Specifies the compression filter to be used for monochrome images. Must be one of the following values:

• CCITTFaxEncode: Selects CCITT Group 3 or 4 facsimile encoding

• FlateEncode: Selects Flate (ZIP) compression

• RunLengthEncode: Selects run length encoding