cfdocument http image calls shows * marks

In downloaded PDF the images displays as red * marks

TheCF server and  the client uses  SSL,

In ODF cfdocument maked HTTP calls to get images, this HTTP call can't get the correct response due to the restriction by client SSL.

can we convert cfpdf HTTP to HTTPS calls. for this conversion do I need to import SSL from client browser in coldfusion JRE's bin, with keytool command and restart CF.

please suggest me.