Delete all pictures at one time

Turn on the [Date Stamp] setting in the [Rec] menu. See page 83 of this manual.

That is correct. The date setup only affects pictures when they are taken; it will not alter pictures that have already been taken.

If you want to remove the date from a picture that already has it, you have to remove it the same way you would remove any other unwanted object from the picture.

LOL, ok, Reformat does just that (Delete All Files). Unless you have them backed up someplace outside of the computer, they are history.

Format and Recovery deletes everything. Recovery will set your system back to the time you first purchased it. But your personal files will be gone.

System Restore on the other hand does not delete anything. It allows you to restore your system back to a particular date and time. Your documents, music, pictures, videos, data and programs will not be deleted. You might have to reinstall programs that you installed after the date and time you selected.

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To set the date and time stamp on pictures, Follow the given instructions:
Setting Date and Time:

First of all set the exact and time if your camera:

• Press the "Menu" button on the camera and use the right navigation button to choose the "Set Up" menu.
• Scroll down to "Date/Time" and press the ""Func./Set" button. The set date and time will appear on the screen, and the month unit will flash.
• Adjust the month unit by pressing the up or down navigation buttons. Move to the day unit by pressing the right navigation button. Use the same instructions to adjust each unit of the date and time.Push the "Func./Set" button to save the time and date settings.

Setting Date Stamp on pictures:

• Press the "Func./Set" button and select "Recording Pixels" and "Postcard". The camera is now set to "Postcard" mode.
• Open the "Rec." menu by pressing the "Menu" button on the back of the camera.
• Highlight "Date Stamp" by pressing the down navigation button.
• Change the "Date Stamp" setting by pressing the right or left navigation button. Your choices are "Off", "Date" or "Date/Time". Now, when you take photographs the date or the date and time will appear on the picture.

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From the manual, "Imprinted dates form a permanent part of image data and cannot be deleted."

The best you can do it to make sure that Date Imprint is turned off for future pictures. The camera still records date/time info into each picture file, and many printing programs can imprint that onto the picture at printing time. The good ones print it on the back, so as not to interfere with the image. Either way, you can always add the date to the picture, but you can't remove it once it's there.

You may want to set the factory defaults by going into the main maenu.

The date/time cannot be deleted once it is embedded in the image. To turn off the date/time deselect the date/time stamping by following procedure:
These instructions explain how to insert the date in images.
attention:

• The [Date Stamp] cannot be deleted from the image data once it has been recorded because the date is written in as an image.
• When selecting [Date Stamp] , [Recording Pixels] is set to 1600 x 1200 pixels and the compression (image quality) to [Fine].
• When the shooting mode is set to <Movie> (), settings for inserting the date and time cannot be made.
• The following explanations are provided based on the assumption that the [Shooting Mode] is set to <Program AE> ().

1. Press the <Power> button on the camera.

2. Press the <FUNC./SET> () button.

3. A screen like the one below will appear on the monitor.

Select [Date Stamp] () in the [Recording Pixels] section .
Press the <MENU> () button.


4. A screen like the one below will appear on the monitor.

Operate the <directional buttons> left or right to select [Date Stamp] and set it to [Date] or [Date & Time].
Press the <MENU> () button.


5. Press the <FUNC./SET> () button.

6. Make sure that the [Date Stamp] is set and the following screen will appear with the icon () in the lower-left corner of the screen.

7. When shooting with this setting, the date will be embedded in the image as shown below.

[Date]
[Date & Time]
warning: The date, its font and color, and the position where it is displayed cannot be changed. Also, dates and times recorded with [Date Stamp] cannot be deleted.


If you need a manual for the A480, you can download it from:

http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=DownloadDetailTabAct&fcategoryid=320&modelid=18155

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here is the solution:
The date and time can be included on the pictures taken only with the camera in postcard mode. You must also activate the date stamp option in the menu.
To set the camera into postcard mode, press the [Func.] button on the camera, then use the [arrow down] key to go down to the last option in the menu, and there you can choose the [Postcard mode]. Press [Func.] again to exit the function menu.

To set the date and time stamp, press the [Menu] button and then use the [arrow down] button to go to the [Date stamp] option in the menu. You can set this to "Date" or "Date & Time". Press the [Menu] button again to exit the menu.
your date and time are set now
congratulations!
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Press Menu, to highlight Setup, then OK to access settings Options Return to previous menu.

Camera Sounds
Choose sound effects.
All On (default)
Shutter Only
All Off
Auto Power Off
Choose inactivity time until camera turns off.
10 minutes
5 minutes
3 minutes (default)
1 minute
Date & Time
See Setting the language, date/time.
Date Stamp
Imprint the date on pictures.
Choose a date option, or turn off the feature. (Default is off.)
Video Date Display
Display Date/Time at the start of video playback.
On (default)—choose from date formats.
Off
Blur Warning
See Understanding blur warning icons.
On Off
Language
See Setting the language, date/time.
Format
CAUTION:
Formatting deletes all pictures/videos, including those that are protected. Removing a card during formatting may damage the card.

Memory Card - deletes everything on the card; formats the card.
Cancel - exits this setting.
Internal Memory - deletes everything in internal memory including email addresses, album names, and favorites; formats the internal memory.
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There is an option in teh menu of the camera date imprint.Take it off.And thes is it!