apiverve_pdftoimage

https://github.com/apiverve/pdftoimage-API

PDF to Image renders the pages you choose from a PDF, uploaded or fetched from a URL, as PNG or JPG images and returns a download link for each, valid for 2 days, with its pixel size. The Free plan renders one page per call at 150 dpi; paid plans render up to 10 pages per call and can set the resolution from 72 to 300 dpi.