LaTeX.org

Thanks a lot. I am not a computer person, and never had to deal with that kind of issue. I'm on mac, I'll check what is available.

Hi

I already exported a number of document to pdflatex format without encountering any issues. I now an error message for former or new documents for preview, export or printing. The new docs result from duplication, which might explain the problem, but I get this error message for documents that ...