I have tried to use
thumbpdf to try and generate thumbnails, working directly on the pdf file, like this:
This has worked the first time, and produced the corresponding cv-xxx.png files, as well as a cv.tpt file. However, it hasn't worked again (even if the PDF has changed), or in a Github action environment, where it outputs this correctly:
THUMBPDF 3.17, 2018/09/07 - Copyright (c) 1999-2018 by Heiko Oberdiek. *** make png files / run Ghostscript *** !!! Warning: MediaBox not found, using default resolution: 9 DPI Processing pages 1 through 4.     *** make `thumbpdf.pdf' / run pdfTeX *** *** parse `thumbpdf.pdf' *** *** write `cv.tpt' (pdfTeX thumbnail data) *** *** clear temp files *** *** ready. *** citations-year.png cv.png paper-citations-year-log.png paper-citations-year-nolog.png mv: cannot stat 'cv-0.png': No such file or directory Error: Process completed with exit code 1.
But it's not producing any .png file at all. I have seen there's an option
--make-png, but it's supposed to be activated by default, so that should not be it... Any idea?