Thumbnail transformer options

[kgrellier]

Hello,

I'm new to alfresco and i'm trying to generate thumbnails of files (after upload via a webscript).
I can upload the file and get the thumbnail (with the alfresco service using avatar/imgpreview) but, i would like to add some others options in the transformers in order to change the quality or the colors (-monochrome) for example.
(i think alfresco use imageMagick to generate the images files but i really dont know how to add some parameters to imageMagik)


Thanks a lot

Kevin

PS : i started to play with alfresco last week so i'm a beginner

[jpotts]

I wrote a blog post on thumbnails a while back. Some of the details may have changed since then, but you might see if it helps.

Basically, the thumbnail options are specified in a Spring Bean XML config file. That file is in /WEB-INF/classes/alfresco/thumbnail-service-context.xml.

You can override those beans by copying the file into /WEB-INF/classes/alfresco/extension/ and modifying as you see fit.

More info on overriding the config can be found on this wiki page.

Jeff

[kgrellier]

Thanks a lot for your answer, and for your blog which helped me a lot. Actually, I've discovered the commandOption property this afternoon, so I can now use some imageMagick option to set the quality of the image (or -monochrome).

Thanks

Kevin