Import & Stamp PDF's

Each evening I distribute a newsletter to approx 500 subscribers, and I want to stamp each copy I send with the name, email address and subscriber number of the recipient. I've not done any programmatic PDF manipulation, but could this be done using PDFlib? I receive the newsletter as a PDF from the publisher, it's not generated on my system. I envision it running as follows: Have fetched all this information from the database, while processing the result set .. Open a copy of todays_news.pdf Write the desired information to a certain block/watermark Save it Create the mail message & attach PDF Send it Delete the copy Repeat Regards - Miles Thompson