• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 175
  • Last Modified:

Information in a picture...

How much information is stored in a picture when i save it.. (in a jpg format)? What can they find out about me and my machine. And how can i prevent this to happen?
0
reidarj
Asked:
reidarj
1 Solution
 
Eric AKA NetminderCommented:
I've never found anything remotely resembling inforation about someone in a jpg... but now you've made me curious...
0
 
weedCommented:
There is no information about you stored with a JPEG unless a program (typically microsoft products) save extra information with them. In a typical JPEG file created with a "safe" program there is the information that describes the picture and the following:

(:3=<9387@H\N@DWE78PmQW_bghg>Mqypdx\egc /cB8Bcccccccccccccccccccccccccccccccccccccccccccccccccc %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz &'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz z?*((?:\Rqä1@ Gz;Q@X;—F8 @M'z)@§ ;QF=sG $<75'Q joz{)S eDN1L5# 3xff4M
/zo~3 =*R.!5 #×5 jg<UiI Gz^sLC Gns@X^‘†qH: EHF;S
+ s@"E'5:t lRM&sGjP=±LI\E -&
-jd 5BRqJsäiŒ;–&/z\ t<~u^' (`=)Xiïvbû£ r.
_=0qUg^hF5 k8752KäV: ea;QF9€4 b-/jm/jc <RP04qE&)ê8g5&“EF*T4 @IhD2
;äo E=zS)!1Å zsA!G5w9n.y &=3RJ$ xN)TqO }iw`R) }h
ob\


As you can see there is no information about me in the text header.
0
 
weedCommented:
As a side note...if youre worried that youre using a product that is storing extra info, there are programs available to strip out extranneous information to reduce the size of your gifs and jpegs.
0
Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

 
forkbeardCommented:
wait...

<RP04qE&)ê

hmmm... just as I suspected.  This explains alot.


forkbeard
0
 
weedCommented:
Thats some mysterious alien code telling all the JPEG data fork readers of the world to take control of washington...right?...its a communist plot...heh
0
 
reidarjAuthor Commented:
So if I save my picture in JPG format in Adobe Photoshop 4.0, there's no extra information about me and my machine in the picture?
0
 
weedCommented:
Exactly.....Unless youve specifically TOLD photoshop to embed a digital watermark (which is  a service you have to pay extra for).
0

Featured Post

Prep for the ITIL® Foundation Certification Exam

December’s Course of the Month is now available! Enroll to learn ITIL® Foundation best practices for delivering IT services effectively and efficiently.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now