PDF-Converter

This script is developed by need to convert emails with PDF attachment from quoted-printable to Base64 encoding.

Broblem

This script solves problem from Outlook software sending PDF attachemnts to Courier MTA whitch relays mails to IBM Lotus Domino server. IBM Lotus Domino unable to decode Outlook quoted-printable PDF file corrctly so Courier MTA uses this script to encode PDF file to Base64.

Algorithm

Algorithm is quit simple. Main point is that all mails for specific user must go thru this script. Scripts algorith in steps:

1. Script reads email from STDIN

2. Then analizes if email was send with Outlook softaware (X-Mailer header). True-> (3) False->(7)

3. Checks email parts if it contains PDF file. True-> (4) False->(7)

4. Checks if PDF encoded in quoted-printable. True-> (5) False->(7)

5. If so decodes PDF file

6. Encodes PDF file with Base64 encoding

7. Sends mail to receaver (internal mail address)

Requared packages

This script requares some packages (tested on Debian):

• ibemail-mime-perl
• libemail-mime-encodings-perl
• libmime-base64-perl
• perl

Setting up

For example jon. Jon's external email address- [email protected] and internal lotus address is [email protected]. To settup script to work for Jon we need to edit aliases file like follows:

[email protected]: | $PATH_TO_SCRIPT/pdf-convert.pl [email protected]

Script usability

pdf-convert.pl $to

• $to- internal email address where to rellay emails