DSpace Generating Thumbnails
Generating Thumbnails for PDF in DSpace
When you add bitstreams, thumbnails and content indexing is performed asynchronously by the ‘dspacefilterWmedia’ command attached to a cron task. By default, the cron task is set to run in the dspace users crontab once a night. You can select a more frequent interval, but be careful that you don’t have so short an interval that runs overlap.
You can also run this process manually (for example, after you have loaded a batch of images, and you want to see the thumbnails). To do this, as the dspace user, run:
This will scan the collection for all unthumbnailed/unindexed images and process them. If you change the thumbnail size in the dspace.cfg file, or for some other reason want to delete all the thumbnails that were generated, you can run the following command to recreate them for all items. To do this, as the dspace user, run:
/dspace/bin/dspace filter-media -f