pstoedit

Convert PDF files into various image formats. More information: http://www.pstoedit.net.

• Convert a PDF page to PNG or JPEG format:

pstoedit -page page_number -f magick path/to/file.pdf page.png|page.jpg]

• Convert multiple PDF pages to numbered images:

pstoedit -f magick path/to/file page%d.png|page%d.jpg