Printing a PDF letter
Most organizations will be familiar with the idea of a merge letter. Rather than creating a generic letter addressed to "Dear Supporter," you want a personalized greeting that includes the individual's first name, such as "Dear Sofia."
Sending a letter with a personalized greeting and other personalized content inside an envelope with the correct address on it is no small challenge when hundreds or thousands are being produced. Large direct mailing houses will often have special machines that print a personalized letter and its personalized envelope at the same time, and then insert the included content and seal the envelope, all within a strictly-defined workflow that eliminates the possibility of mismatched elements. Small organizations may have envelope-stuffing parties, where letters are folded, address labels are applied, the folded letters are stuffed in the envelopes, perhaps with a reply envelope or postcard, and the package is sealed...