Map pictures
You can use the open-source platform Digital Mappa for editing old maps and manuscripts. Screenshot from https://dhtools.uzh.ch, Project «Japanese Old Maps».
Digital Mappa
If you want to learn more about Digital Mappa (DM), refer to the following website. It contains information and explanations about this open-source digital humanities platform, provided by the University of Wisconsin–Madison:
If you are a student or affiliated with the University of Zurich, you may use the following platform to edit a map or manuscript with DM:
Register under the above link and you will receive a user account.