Trying to password protect a file. Encrypted image created...now what?

Question

I read this article:
http://support.apple.com/kb/HT1578
and I have created an encrypted image (.dmg) with no issue.
I'm trying to password protect a file on my computer.  It is a Word document.  I can't figure out how to move it to the encrypted image.
The support article said, "You can move files to or from an encrypted disk image as easily as you can from a non-encrypted disk image."
I tried dragging the file to the image....nothing.
Not sure where to go from here.  Thanks in advance for the help.
Chrystal

Answer 1

The advice you're getting from mende1 is not accurate. If you accurately followed the directions at that link you gave, the disk image is certainly not read-only! When creating a new disk image, the default is to create a read/write image, so unless you changed that setting when creating the disk image, that's not your problem.
My suspicion is that you're not using the image file properly. Once you have the disk image file, here's what you need to do to put the Word file in question on it:
1) Double-click the disk image file that you created. This will "mount" the disk image as a "disk," which will show up on your desktop (if you have the Finder set to show such things on the desktop) or in the sidebar of any Finder window.
2) Drag the Word file onto the "disk" - NOT the disk image file! It should copy the Word file onto the "disk".
3) "Eject" the "disk" by dragging it (NOT the disk image file!) to the trash, or clicking the eject icon next to it in the sidebar of a Finder window. Once the disk is ejected, the file is locked and the contents cannot be accessed without the password.
4) For the most security, put the original Word file in the trash and choose Secure Empty Trash from the Finder menu. Before doing this, though, it would be wise to try to re-open the disk image and make sure you successfully copied the Word file onto it, and that you can open it just fine.