Nestor, Why not set up an engine which gives a full path to pdflatex. For example --------------- #!/bin/tcsh /usr/local/texlive/2020/bin/x86_64-darwub/pdflatex -file-line-error -synctex=1 "$1" -------- If you use pdflatexmk, this might be more complicated and then Herb's your man. Dick Koch