Open Source Document Management

Is there a way to tag multiple documents at the same time?

Yes, this is possibile but only on files on the same directory.

Select more than one file then select the icon "Bulk Update",
then enter the tags you whish to add into the field "New tag" (press enter to confirm the tag entered)

At the end press the button "Save" to apply the modifications.

Great, thanks! We want to do this folder by folder, so this is the perfect solution.