The OptimizationOptions type exposes the following members.
Gets or sets whether to convert color images to grayscale. Default is false.
Gets or sets the compression format for image optimization.
Gets or sets the quality of JPEG compressed images.
Gets or sets whether to resample (resize) high-resolution images. Images with the resolution larger than ResamplingResolution will be resampled at ResamplingResolution. Default is true. Helps to optimize (reduce the file size) PDF documents containing high resolution scanned images (300DPI or more) at the expense of text sharpness.
Resampling resolution. Default is 120 DPI. All images of higher resolution will be resampled to it.