Convert otb to wdp

What is the difference between .otb and .wdp?

Description: The OTB (Nokia Over The Air Bitmap Image) file format is a type of image file developed for use on Nokia mobile devices. These files are specifically optimized for efficient transmission and display on Nokia phones, particularly older models. The OTB format is designed to be compact to facilitate over-the-air (OTA) transmission, which was an essential feature in the era of limited bandwidth and data transfer capabilities. The format supports monochrome graphics, making it suitable for simple images like icons and logos.; Compressed raster image format developed by Microsoft; similar to the .JPG format, but uses a higher degree of compression and supports both lossy and lossless compression; used primarily for high-resolution digital photographs; can be used with several Microsoft products including Windows Photo Viewer, Windows Live Movie Maker (WLMM), and Microsoft Word.