Canon Ixus Date Stamp

How can I delete the date and time stamp from images already taken by my Canon IXUS 870IS?

I took a lot photos before and not realized they had date and time stamps in the same photo. I do not know how to remove them. Ideas? Thank you!

Well, when it is made. It merges with its image. However, I am still creating a site for editing photos and if you wish, you can go to it and send me e-mail and see if I can help. Perhaps you can eliminate them. The site is not finished yet has some mistakes, but try to see beyond this: I hope this helps www.TheDigitalSurgeon.co.uk