ตัวแปลงไฟล์ออนไลน์ฟรี G4 เป็น JPS

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).

JPS is a format used to create a 3D effect out of a 2D pictures. Such files usually contain two images with different perspective appropriate for each eye and they are stored side-by-side.