Pdf Convert Image Solutions

1. brew uninstall ghostscript
2. brew install ghostscript

      gs -dNOPAUSE -sDEVICE = jpeg -r150 -sOutputFile =. / Documents / pdf \ front-end data /test/output-%d.jpg ./Documents/pdf \ front-end data / AngularJS authoritative guide .pdf

Reproduced in: https: //www.cnblogs.com/Kummy/p/5603978.html