Here is the the command to convert a in.pdf file to PNG in out folder.
magick in.pdf out\%d.png
Above command does the job, but the quality may not be good. Using -density 300 option we can increase the quality
Note: higher the -density larger the output file sizes
magick -density 300 in.pdf out\%d.png
%d.png will generate files names in 1.png, 2.png and so on
Selectively Extract or Split pages from PDF File ➥
Most of the time you will want convert/extract only few page instead of the whole PDF file.
In below command we are telling imagemagick in.pdf[12] to only extract 13th page (page index starts from 0),
magick -density 300 in.pdf[12] out\%d.png
To convert pages 11, 13, and 19
magick -density 300 in.pdf[12,14,20] out\%d.png
To convert pages range 10-15
magick -density 300 in.pdf[9-14] out\%d.png