View Full Version : why does adobe...?


garfield
12-01-2002, 02:14 AM
HI! how do one person knows that you used photoshop in optimizing your images to be displayed in the web? Is there a way for me to disable this so i can still use photoshop and image ready for my web images. thanks for reading my post.

Mike Needham
12-01-2002, 05:15 AM
If I read your post correctly then the answer is no you can't turn off the Save for Web feature in Photoshop, but then neither should you want to. If you want to use Image Ready then just choose File>Jump to>Image Ready, you can keep Photoshop running in the background.

Hope that helps?

dcarr
12-01-2002, 06:53 AM
I think you mean can someone tell that you used photoshop on your images if they are displayed on the web? I don't think so Garfield unless photoshop leaves a code of some sort, but I don't think that is so. If Mike and I are both wrong, see if you can explain your question differently. Thanks
Debbie

Andrew B.
12-01-2002, 11:50 AM
I just ran some tests, saving from Photoshop using Save for Web and not using Save for Web, with profiles turned on and off. Each time I was able to find the word "Adobe" in the jpeg by opening it in a text editor. And I imagine there are utilities that are even better at reading the header.

I took the same Adobe picture and told ACDSee Classic to convert it to a jpeg (which it already is), but this was to get ACDSee to resave it using its own engine. After doing this, the Adobe text was gone. Also, it looks like ACDSee Classic did not add it's name to the file.

So it looks like the solution might be to use another program to resave it -- one that does not stick its name in there.

CJ Swartz
12-01-2002, 12:31 PM
Andrew -- thanks for the tests. I've accidentally opened a jpeg file with a text editor and seen words, but didn't even think about it being an identifying code encapsulated in the image.

dcarr
12-01-2002, 01:38 PM
Thanks for the info Andrew. Hope it helps garfield.
Debbie

garfield
12-01-2002, 03:33 PM
yup what andrew said is true. bec. my teacher told me he could tell if i used Photoshop or not, so i asked u guys. can i just delete the entry and just resave it in the text editor? or will it destroy the image i saved in ps? BTW, acdsee is not a freeware and i need a freeware graphic editor with features like ps. but its all right. thanks for clarifyng

d_kendal
12-01-2002, 04:25 PM
Originally posted by garfield
i need a freeware graphic editor with features like Photoshop.

Check this out: the GIMP (http://www.gimp.org) click on Gimp for Windows (you can get a link to the installer there) it had lots of the features of photoshop, and it is freeware.

- David :)

CJ Swartz
12-01-2002, 04:39 PM
Garfield -- you got your question answered; how about answering a question for me? Why would you want/need to hide the PShop code in your images? What difference does it make to your instructor or anyone else whether you used PShop or Paint Shop Pro or GIMP or ??

Andrew B.
12-01-2002, 08:28 PM
Judging from the look of the file when I opened it, I would guess that just deleting all cases of "Adobe" would cause the file to crash. Also, I noticed some places where it also said "Photoshop," so who knows what else is in there.

Someone here mentioned Gimp, and that's probably your best bet. It's a free graphic editor, and a pretty darn good one. You could load your Adobe file into Gimp, resave, and then check the header. Or you can do your editing in Gimp. Either way, at least you can say you used Gimp.

By the way, why does your teacher require students to NOT use an Adobe product.

garfield
12-01-2002, 11:36 PM
if i edit in adobe and then just reopen it in gimp is it possible for the name adobe to disappear in the filename or any trace for that matter? Because my professor dont want us to use Photoshop unless we are sure that we can produce the real licensed one, because almost all of my classmates and i only cd write our copies to a friend so that's the reason why i need another one. i hate gimp its powerful but its hard to study another and it is not GUI!!!!

Ed_L
12-02-2002, 11:19 AM
Do I understand you correctly, by thinking you and your friends are copying registered versions of Photoshop to share with others?

Ed

arrowphoto
12-02-2002, 10:13 PM
......you understand. It is quite a common question in other forums that I have been in. I have, in the past, guested at a local high school and a local community college. Both require that you show proof of ownership for things like Photoshop, GoLive etc. I even had to prove that I owned the software on the PowerBook that I used in classes at the college. I haven't done it in 3 years, but i am certain that the rules really haven't changed much.

garfield
12-04-2002, 06:17 AM
if i create an image in photoshop and then resave that again at gimp will it still leave trace that i use adobe in it?

CJ Swartz
12-04-2002, 09:39 AM
if i create an image in photoshop and then resave that again at gimp will it still leave trace that i use adobe in it? - garfield

If it's an illegal copy - yes. :devil:

Ed_L
12-04-2002, 10:05 AM
No doubt about it. :devil:

Ed

VisualEyes
12-04-2002, 10:58 AM
At the risk of facilitating piracy, I'd like to note that there are several freeware/shareware utilities that purge Photoshop thumbnails, Macintosh headers, EXIF, JFIF and JPEG metadata from digital images. The basic (and legal) motivation behind these is to minimize the filesize of the image for faster online transfer. Size reduction can range from a few bytes to 20+ kilobytes and more per image.

My favorite utility in this catagory is Thumber ( http://www.tawbaware.com/thumber.htm ). Unchecking the "Retain image data in edited and resized images" option in Settings will remove all header info. For those of us who prefer to keep all of our original header/EXIF info though, Thumber does that too. It will rotate, sharpen, blur, resize, and even batch-remove specified "bad pixels" and then save the edited file with all the original header information intact (except for dimensional info of course).

Another good shareware program is David Crowell's JStrip ( http://www.davidcrowell.com/jstrip.php ). While it doesn't have Thumber's editing capabilities, it does a very straighforward job of removing all the extra header baggage. David also distributes a freeware version called JStrip Lite with fewer options.

garfield
12-05-2002, 02:39 AM
yahoo, thansk for the jscriptl i think its good except for command line, anyway thanks now i'm back to learning Photoshop and soon to be flash. thanks!

garfield
12-05-2002, 02:39 AM
yahoo, thansk for the jscriptl i think its good except for command line, anyway thanks now i'm back to learning Photoshop and soon to be flash. thanks!

Balky
12-19-2002, 10:30 PM
WHY DON"T YOU GUYS TRY A SIMPLE "WINDOWS PAINT"

I just tried, it removes the words ADOBE, PHOTOSHOP etc.

:-)