From email: 2023-10-11

this came by email

I made a project and saved it as a pdf, and now it won’t allow me to edit it in the application. What I can do?

I am not sure that I clearly understand what is the issue, but anyway. GanttProject can’t save a project as PDF. We can export it is PDF and naturally the resulting PDF file can’t be edited in GanttProject, as it is supposed to be printed/whatever else you do with PDF files.

discussion continues by email

Ok, but how can I recover the original format of the program to continue editing it?

You probably have the saved GanttProject document, don’t you? How do you usually continue editing MS Word file after you print it?