imagemagickConvert PDF to image

convert -density 300 -trim in.pdf -quality 100 -flatten out.jpgctrl + cyoutubegithub

`-density 300` sets good image resolution	`-trim` will optimize resulting image by removing unnecessary data
`in.pdf` PDF file to convert to image	`-quality 100` best possible quality
`-flatten` will reduce resulting image file size	`out.jpg` resulting image