Trình Chuyển Đổi Online Miễn Phí PPTX sang G4

An extension to store presentations and slide shows, for PowerPoint 2007 and newer versions. Contains a set of slides with audiovisual information, multimedia objects, and formatting. The file is created based on the XML format, which allows you to view the recorded information in text editors.

G4 is a method to compress black and white images without losing quality. It is used for fax machines and as a one of the compression types for the TIFF format. G4 treats a picture as black dots and lines on a white page (less file size will be achieved if there are less black dots and lines).