ตัวแปลงไฟล์ออนไลน์ฟรี CGM เป็น OTB

This is used to exchange vector graphics among different platforms. It stores not only 2D vector images, but also raster images. It allows you to store a large number of graphical information types and is applied primarily for design in aviation, engineering and other technical fields.

This format was created by Nokia for use in its proprietary phones. A bitmap image was used to transfer image files between devices over a wireless connection. It was mainly used when exchanging multimedia text messages that support inserting pictures.