Page formatting functions

SetTrimWhitespace

SetHTTPEnabled

SetTrimBasedOnGrayscaleEnabled

IsTrimBasedOnGrayscaleEnabled

SetTrimGrayscaleIntensity

GetTrimGrayscaleIntensity

SetCropEnabled

IsCropEnabled

SetCropMode

GetCropMode

SetCropArea

SetSplitDocumentEnabled

IsSplitDocumentEnabled

SetSplitDocumentPage

GetSplitDocumentPage