免費線上 MAC 轉 OTB 轉換器

This is a bitmap image format that was created by the MacPaint graphics program used on Apple Macintosh computers. The MAC format supported the display of only two colors, including a pattern palette. It was used by Macintosh graphics editors to store black-and-white graphics. The maximum image size was 576×720.

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.