SOOOO, here is a tutorial on how to make your current PDFs secure... it's super easy and fast! Re-doing and re-uploading all my TPT files, however, will not be. Urgh...
Step 1: Open your PDF in Adobe Acrobat. You must have Acrobat to secure a document-Adobe Reader does not have the capability (as far as I know).
Re-enter your permissions password...
And that's it!!
As for saving after you create a new item- if you create it in Word, when you Save As PDF, follow these steps when it opens as a PDF.
If you create it in PowerPoint, click on print then at the bottom, click on PDF, and select "Save as PDF." There is a box that brings up what the document can be renamed as, but underneath that is a box for "Security Options". Click that. Then just check "Require password to copy text, images, and other content" and fill in your password. *Thank you to Christy from Teaching In Oz for this tip!!*
I think Christy may have a different version of PPT, so hers is a little different... On my version, I go to Print, and choose my printer as Adobe PDF. Then select Printer Properties... where it says Adobe PDF Security, select Reconfirm Security for each job, then click edit. That screen should look just like the one from the tutorial in this post.
Here are some tips from Aimee at Pencils, Books, and Dirty Looks for Mac Users! I found out that you do not have to purchase Adobe Acrobat to secure your PDFs. Simply open your PDF through preview (right click on your PDF for the menu and the pick Open with, the click preview). Next go to the menu and select print. If you are in preview you will see a drop menu for PDF on the bottom left. Click that and go to Save as PDF. The next screen to pop up has a Security Options button. When you click on that, you will get three choices. Check "Require password to copy text, images and other content." DO NOT check the other options or your buyers will not be able to open or print your product. If my explanation does not make sense, check out this youtube video. http://www.youtube.com/watch?v=1GxmzmugVU0
For those of you without Acrobat, Nicki at Mrs. Thigpen's Kindergarten suggested getting PDFill for free to do encryptions.
I hope this helps! Anyone else that figures out tips along the way, I'll be glad to add them to this post, just I have been doing! :)