OTB to PGM Converter
Convert your otb files to pgm online & free
How to convert OTB to PGM
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to pgm"
Choose pgm or any other format you need as a result (more than 200 formats supported)
Download your pgm
Let the file convert and you can download your pgm file right afterwards