Bob,
The software here at HealingWell does not support attachments so, technically, you can't post them
here. What Tony is suggesting is that you follow the link in his signature to his new forum (not part of this site) and create a login there. That site
does support attachments and you can start a thread there and attach your PDF files. Then you can post a link here to your thread on the other site where HealingWell people can view your PDF files (they will also have to join the new site to see them.)
There are several other ways to make files visible online. I have used Google Drive before.
Here is a link to a graph of my daily leakage. (Currently somewhat out of date.) You can set up the file sharing so that people don't need to log into anything to view the files.
One cautionary note: If you are a retired jewel thief hiding from the law, or someone else for whom anonymity is very important, you should make sure attached documents do not reveal any personally identifying information and also should familiarize yourself with the level of anonymity afforded by the file-sharing application you use.