How to check if imagemagick works?

[andchi]

I do not see image ( png ) preview in in the Document Library.

I see properly the preview of PDF and DOC

### External executable locations ###
ooo.exe=E:/alfresco-community/libreoffice/App/libreoffice/program/soffice.exe
ooo.enabled=true
ooo.port=9100
img.root=E:\\alfresco-community\\imagemagick
img.dyn=${img.root}\\lib
img.coders=${img.root}\\modules\\coders
img.config=${img.root}
img.exe=${img.root}\\convert.exe
alfresco-pdf-renderer.root=E:\\alfresco-community\\alfresco-pdf-renderer
alfresco-pdf-renderer.exe=${alfresco-pdf-renderer.root}\\alfresco-pdf-renderer.exe

[andchi]

In log file:

2019-04-18 18:20:59,737 ERROR [org.alfresco.repo.jscript.ScriptNode] [http-apr-9080-exec-6] 03180175 Unsupported transformation: transformer.ImageMagick image/png to image/png