exif

Did you do a search using Synaptic using the term exif?

PCLinuxOS-Forums 2009

Did you do a search using Synaptic using the term exif?

PCLinuxOS-Forums 2009

This information, called exif data, can also include a unique serial number which identifies your camera.

Boing Boing Cory Doctorow 2011

"Ha ... when you take a picture with a digital camera, it by default adds in some extended data from the camera, 'exif' data, now traditionally this was info to help the photographer such as f-stop used, lens type etc - all very useful, also adding more information for filing - remember that Manchester congestion thingy I rumbled?

British Blogs 2009

So an "off" date would be permanently ingrained in the actual image itself, arguably even more annoying than bad exif data.

EXIF Date Changer Helps You Synchronise Photo Times | Lifehacker Australia 2009

When you upload photos to Flickr, Photobucket, Picasa, etc., without running them through some kind of post processing and re-saving them, the exif file is preserved.

At the Frozen Creek Alehouse. Ann Althouse 2009

However, if you re-size the photo or adjust it otherwise, exposure, contrast, saturation, etc, in Photoshop and then re-save it using Photoshop's "save for web" feature Instead of the clickety click regular save, then the exif file is forfeited.

At the Frozen Creek Alehouse. Ann Althouse 2009

PC uses can download Opanda for an exif viewer to work with Internet Explorer, also FireFox has an add-on exif viewer.

At the Frozen Creek Alehouse. Ann Althouse 2009

So an "off" date would be permanently ingrained in the actual image itself, arguably even more annoying than bad exif data.

EXIF Date Changer Helps You Synchronise Photo Times | Lifehacker Australia 2009

February 14, 2009 at 9: 56 pm you can also use the venerable graphic converter to view all the exif data.

Apple Tip: View EXIF Digital Photo Data in OS X Finder — Meandering Passage 2007