[O] newbie which LaTeX for PDF publish

[adam]

Am on Ubuntu 16.04, org-version is 8.2.10 

Export to PDF C-c C-e l o  is working. 
However I wish finer grain LaTeX control. 


For Export to PDF to work, I needed  pdftex  

So I followed one suggestion and installed    
sudo apt-get install texlive-latex-extra 

However Tex's tlmgr reports errors and doesn't work. Tex users suggest 
a version incompatibility between that tlmgr and this Tex package. 

Any suggestions are welcome. 

Perhaps I should un-install texlive-latex-extra  and install a more fully blown 
LaTex
package. In which case, which one?