Today I Learned: 25/09/2021 - Extracting the first page of a PDF as an image

To facilitate the preview images of Lions District newsletters on this page, here is an ImageMagick command I run on my Linux PC. This yields an image of +/- 100kB at a perfectly adequate quality for a preview:

convert -quality 100 -density 100 -background white -flatten PDF_FILE.pdf[0] IMAGE_FILE.jpg