Restrict access to documents with Information Rights Management …
Select the File tab. Select Info, choose Protect Document, point to Restrict Permission by People, and then select Restricted Access. In the Permissions dialog box, select Restrict permission to this document, and then assign the access levels that you want for each user.
Remove a password from a document - Microsoft Support
Removing a password from a document is a simple process, but you have to know the original password. Open the document and enter its password. Go to File > Info > Protect Document > Encrypt with Password. Clear the password in the Password box, and then click OK. Easily remove a password you set on your document.
Show word count - Microsoft Support
When you need to know how many words, pages, characters, paragraphs, or lines are in a document, check the status bar. For a partial word count, select the words you want to count. The status bar shows the word count for that selection and for the entire document.