810 The default image compression algorithm makes use of color palettes to reduce the overall size of 24 bits images. This algorithm works well as long as the number of colors does not exceed 256.
811 The 256 color compression algorithm calculates the most used 256 colors in an image and replaces all other color pixels by their closest match. This lossless compression algorithm works usually very well with most applications.
812 The lossy JPEG compression algorithm produces excellent results with real life true color images with a small distortion of the source image. It is not recommended for graphics other than real pictures.
820 File system
821 Prompt for file name
822 Document title.pdf
823 Predefined by user
824 The user is prompted for a destination file name. If entered, the default directory will be used in the file save dialog box.
825 The file name is constructed from the default directory, the document title and .pdf extension
826 The user should enter the full path of the destination file in the File Name field. The default directory is not taken into account in this case.