Export Word Doc to PDF with Word for iPad

In the Word document:

• Click the Share (right) icon (the one with a person and a + sign)
• Select "Send Attachment"
• Select "PDF"
• Select "Send a Copy"
• Here I found a few useful options, send to Google Drive (may need to click "More" to enable it), Gmail and "Save to Dropobox", etc.

Encrypted PDF File

Owner Password:

preventing the file from editing (changing), printing, selecting text and graphics (and copying them into the Clipboard), or adding/changing annotations and form fields

User Password:

Protected by password for opening