Convert pdf to png with ImageMagick

[ImageMagick](https://imagemagick.org/index.php) allows an easy conversion between image files with the `convert` command.
This also works with `pdf`-files, but by default the quality of a converted `pdf`-file will not allow one to read text.
So fix this, use the `-density` option, adjusted to ones liking. I had good results with the following

    convert -density 300 <file.pdf> <output.png>

Of course, one can also output to `jpg` or other file formats.

tags: pdf, convert, imagemagick, computers