I have a long Mathematica notebook where some cells on multiple levels are closed for clarity.
When I export the notebook as a PDF via
Save as, the print only contains the opened cells.
I want to be able to print all cells - even the closed ones - into the PDF.
When I open them via
Cell -> Grouping -> Open all Subgroups my actual notebook is changed destructively, and I have to re-close certain groups by hand because there's no proper undo.
Did I miss any option?