PDFassassin is a module for SpamAssassin that
allows for the scanning of PDF files in email
message attachments. Email bodies are scanned upon
connection and checked for PDF attachments. Text
is extracted from the PDF via pdftotext and
scanned by SpamAssassin. Should the PDF contain
images, the gocr program is called to extract the
text content. The total spam score of the PDF is
compared against the global required_score
setting; if it's higher, a score equal to the one
specified in pdf.cf is appended to the overall
score of the email message.
