How to Merge Multiple Word Documents in Microsoft Office 2016
I use this merge function regularly, but I'm surprised how many people don't know this feature exists.
Cometdocs
Online tool for converting PDF files to Word, Excel, PPT, etc. It does a good job of making text editable, but converts SmartArt as static graphics. It would work for small text edits in a presentation where you don't have the original PPT file, but if you had a lot of SmartArt to rebuild it wouldn't save much time. It might work better for Excel spreadsheets than the PPT I tested.
Unprotect a Word form easily, even without the password | Examiner.com
Great tip for unprotecting a Word form when you don't have the password, by inserting the text of the file into a new blank document. This gives you the form but without protection turned on. Useful if you need to clear out all form fields at once to reset a form to blank. Once you get the form unprotected, you can use the Reset Form Fields button on the Developer toolbar.