This page collects some other useful computer tools related to maps and orienteering.
Ocad2Png is a Windows command line tool that creates a PNG bitmap file from an OCAD file, or a portion of it. Options allow determining the size of the output, which part of the OCAD file to use, whether to include templates/background maps, and other options.
Ocad2Png is useful for applications such as seeing where maps have changed, or automating various workflows involving OCAD maps.
To use the tool, download and run the setup program. Once complete, open a Windows command prompt and type "Ocad2Png". You should get instructions on all the command line options.