FortiMail OCR image in PDF file

[thumbb]

Hi,

We have a problem with PDF SCAM emails. The attacker sent a PDF file which contains a scanned letter (image) instead of text. Is it possible to enable OCR functionality to convert image to text and than we are able to use our blacklist dictionary?

[AEK]

Hi Thumbb

I didn't deal with such case before, but have you tried to enable Image spam (Aggressive) and Scan PDF attachment in your inbound AS profile?

[thumbb]

Hi, AEK,

thank you for the hint. I've enabled the  Image spam (Aggressive) but it generates a lot of false positives.

[jakbork]

Something similar happened to me the other day. I guess there’s no real solution other than being careful.

[wukanru7]

PDFGear can't do this yet, hopefully soon! I've been using NAPS2 as a workaround for now. It will add an OCR layer to your PDF to make it searchable. It will not however, make the OCR text editable.