Is it possible to customize the name of downloaded file when I use 'Look up full text document'?

Hi!
Yes, this is possible in JabRef 3.4.

Open the “Preferences” and go to the “Import” settings:

Here you can find the setting “Filename fromat pattern” where you can enter the following:

\begin{title}\format[RemoveBrackets]{\title}\end{title}_\journal(\year) \pages

This should do the trick :wink: