Alerts in case of PDF/office indexation is wrong: please no alert displayed in such a case

There is still an alert being displayed when you upload some PDF/Office files in a file field.

Moreover the alert message and the result of the "batch report" is wrong (publish action when this is an extraction action).

Finally the process is described in orange in the Pdisplay

Could we:

• avoid listng system back-end tasks in end-users alerts. An audit trail in the Pdisplay is enough.
• Make sure the Batch report is correct for such back-end processes.