Aspose::Words::Saving::DownsampleOptions::get_ResolutionThreshold method. Specifies the threshold resolution in pixels per inch. If resolution of an image in the Document is less than threshold value, the downsampling algorithm will not be applied. A value of 0 means the threshold check is not used and all images that can be reduced in size are downsampled in C++....resolution of images in the PDF document. auto doc = MakeObject < Document...method converts the document to .PDF. auto options = MakeObject <...