Memory usage should really be optimized. Adding a setting to limit
the undo histrory would be good. Using 3GB of ram is not a good thing after only 5 minutes of use
There were several memory optimizations done in latest version. Can you please install the latest and if the problem with too much consumption of memory still appears, can you please write step-by-step instructions how to reproduce on bug tracker: https://bugs.launchpad.net/pinta
Adminolivier dufour (Admin, Pinta) commented
I have worked on a system to store history item older than item to disk but never succeed to get it working.
here is the source