centos php ppt转图片

参考：https://blog.csdn.net/aituochang1886/article/details/101167564

安装 Unoconv 参考：

https://www.licongying.cn/2018/10/linux-centos-install-unoconv-liboffice/

https://blog.csdn.net/qq_42975335/article/details/102747587

安装 ImageMagick 参考：

https://www.cnblogs.com/yzeng/p/11569598.html

https://blog.csdn.net/mytt_10566/article/details/80902059

报错解决方案：

convert: error while loading shared libraries: libMagickCore-7.Q16HDRI.so.7: cannot open shared object file: No such file or directory

https://blog.csdn.net/lvshuocool/article/details/89455700

convert: no images defined `ffcl.png' @ error/convert.c/ConvertImageCommand/3273.

https://superuser.com/questions/819277/cant-convert-pdf-into-image-because-of-no-images-defined-error

yum  install ghostscript

Error: Unable to connect or start own listener. Aborting.
Array
(
    [0] => 
    [1] => (process:14752): dconf-CRITICAL **: 23:59:39.488: unable to create directory '/home/www/.cache/dconf': Permission denied.  dconf will not work properly.
    [2] => 
    [3] => (process:14754): dconf-CRITICAL **: 23:59:39.648: unable to create directory '/home/www/.cache/dconf': Permission denied.  dconf will not work properly.
    [4] => Error: Unable to connect or start own listener. Aborting.
)

251

https://blog.csdn.net/wuzuyu365/article/details/95988470

来源：oschina

链接：https://my.oschina.net/u/2400070/blog/3171446