I have many important documents and photos in JPEG format that I'd like to password protect. I am running Microsoft Windows XP but there seems to be no way to do this. John Thompson
In Windows XP Pro, you can right click an image (or other file), and select Properties. Go down to Attributes and click the button that says Advanced. The lowest of the four options says: Encrypt contents to secure data. However, I'd suggest this feature is in the 10-foot bargepole category: I wouldn't use it.
However, there are independent programs that will do the job, such as JpegGuard and CryptaPix 2.24. There are other options here.
Alternatively you can passord protect any file you like using a compression program such as WinRAR -- or protect a whole folder full -- or use a more general encryption program such as Magic Folders.