What is pdftoppm and is it supported by SiteGround?
Pdftoppm is a library that handles the conversion from Portable Document Format (PDF) files to color image Portable Pixmap format (PPM) files, gray scale image Portable Graymap files (PGM) files, and monochrome image Portable Bitmap format (PBM) files.
Pdftoppm is not included by default in the SiteGround shared servers setup.