Created attachment 127387 [details] pdf
Created attachment 127388 [details] Comparison
LibreOffice is not a PDF viewer. What do you try to do with LibreOffice on this pdf file ? Set status to NEEDINFO, please set it back to UNCONFIRMED once requested informations are provided. Best regards. JBF
You're correct it's not a PDF viewer as primary function, but when you're importing a PDF you expect it to be rendered correctly for edit and as a consequence it becomes a PDF viewer, not as a primary function though but as a consequence. Correct edition of the math functions is not possible because of bad rendering.
Clearly, LO does not import math formula in pdf file as LO-Math objects, so you can't expect edit them in LO-Math. You can change this bug report in an enhancement request if you want. Best regards. JBF
would be cool to have right render of Math formuls at least