Convert OTB to PNM
Convert OTB images to PNM format, edit and optimize images online and free.
Drop Files Anywhere to Upload
The OTB (Over The Air Bitmap) file extension, developed by Nokia, is used for transmitting black and white bitmap images between mobile phones, particularly Nokia and Siemens models. These images, with a maximum resolution of 255x255 pixels, are often sent via SMS in either hexadecimal text or binary format. Historically, OTB files were popular in the early days of mobile communication for sending simple graphics, icons, and wallpapers when data transmission speeds were limited.
The PNM (Portable Anymap) file extension, developed by Jef Poskanzer in the 1980s, stands for Portable Any Map. It is an uncompressed raster graphics format designed for portable image storage and exchange, encompassing three sub-formats: PBM (Portable Bitmap), PGM (Portable Graymap), and PPM (Portable Pixmap). PNM files store image data in plain text or binary format, ensuring easy usage across different platforms and applications. This format is widely supported by various image editing software and is valued for its simplicity and lossless compression.
Drag and drop your OTB file or click Choose File to proceed.
Finalize the OTB to PNM conversion by applying tools and clicking Convert.
Give the converter a few seconds, then download your PNM file.
The Vertopal CLI tool provides efficient conversion from OTB image into PNM image.
cd to the OTB folder or include the path.