Opens the image and constructs a collection of its frames (pages).
public static PdfImageFrames OpenImage(this PdfDocument doc, Image image)
The collection of image frames (pages) or
nullif image format is unsupported.
This method does not load image data and does not add images to the collection of document images.
This method is useful if you want to add only some of the image frames (pages) to document or if you want to recompress image frames before adding them to document.
Please use one of the AddImage methods to add a frame from collection of frames to the collection of document images.