controlling the copying of images from a site

D

Dylan Parry

David said:
Fine then, convert the image pixel by pixel into a 1x1pixel table cells with
matching background color.
Thereby having no image on your page at all for them to save.

And that stops me from hitting "Print Screen" how?
So, yes there is.

So no there isn't <g>

--
Dylan Parry
http://electricfreedom.org | http://webpageworkshop.co.uk

Programming, n: A pastime similar to banging one's head
against a wall, but with fewer opportunities for reward.
 
J

Jerry Stuckle

David said:
An noise sounding like Dylan Parry said:


Fine then, convert the image pixel by pixel into a 1x1pixel table cells with
matching background color.
Thereby having no image on your page at all for them to save.

So, yes there is.

D.

Dylan,

It still doesn't stop them from hitting print screen and pasting the
image into their favorite image editor.

No, there isn't. If it can be displayed, it can be copied.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
(e-mail address removed)
==================
 
D

David Gillen

An noise sounding like Dylan Parry said:
And that stops me from hitting "Print Screen" how?

Hitting print screen is NOT copying the image. It is creating a new image,
from a tabular representation of the image.

D.
 
D

David Gillen

An noise sounding like Jerry Stuckle said:
It still doesn't stop them from hitting print screen and pasting the
image into their favorite image editor.

No, there isn't. If it can be displayed, it can be copied.
See my other post. YOu aren't copying an image, you are creating one from a
tabular representation of the image.

D.
 
J

Jonathan N. Little

David said:
Hitting print screen is NOT copying the image. It is creating a new image,
from a tabular representation of the image.

The visitor's got your image full size and with great ease -- end result
is that you have not protected your image. There is only one way, do not
put it online.
 
G

Geoff Berrow

See my other post. YOu aren't copying an image, you are creating one from a
tabular representation of the image.

That's what all pictures are. Y'know, pixels in columns and rows.
 
J

Jerry Stuckle

Dylan said:
Jerry Stuckle wrote:




ITYM "David". I didn't write what you're responding to ;)

Yep, sorry. Shouldn't answer when I'm tired :)

Sorry, Dylan.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
(e-mail address removed)
==================
 
J

Jerry Stuckle

David said:
An noise sounding like Jerry Stuckle said:


See my other post. YOu aren't copying an image, you are creating one from a
tabular representation of the image.

D.

The result is the same. The image is in a buffer, ready to be pasted
into an image editor or otherwise saved.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
(e-mail address removed)
==================
 
M

mantrid

Thanks for all the feedback. its been interesting finding out all the things
you can do even if in the end you cant make it 100% secure. That is not
important really so long as the average surfer is unable to, or cant be
bothered finding out how to.
IThe solution i opted for was to create a thumbnail at the same time as the
full size image is uploaded and have the thumbnail displayed and the full
size image only accessible to registered users. It works fine.
Thanks again I havent had a post that had so much feedback :)
 
D

dorayme

David Gillen said:
An noise sounding like Dylan Parry said:

Hitting print screen is NOT copying the image. It is creating a new image,
from a tabular representation of the image.

As others have pointed out, this is not a good argument. The
screen shot is copying the pixels, the "camera" is not that up
with html table knowledge! I told a story once here about how a
screen shot (surprisingly) gave me information about something I
did not see when creating the pic.

Look, why don't I quote my immortal words?: [1]

BTW, screen snapping is not something to be sneezed at as some
low rent way of capturing. I was surprised recently (but not
flabbergasted) by the way it picks up things that are not
necessarily evident to the eye on the screen it is snapped at. I
do design work for printing and use screenshots a lot to show
clients the artwork (they often have trouble viewing the actual
Illustrator files...). I picked up a fault in the art work via
the screenshot recently in a surprising manner:
Snapped the art layout, I have it in png format at the moment. I
dragged this png to Fireworks and exported it to a gif (it was
the most economical format for communication in this instance).
Low and behold, there was a ghastly rectangular ghost of a pale
background to one small element in the artwork. I thought I had
matched that background to that element (a placed pic prepared in
Photoshop) exactly to the general background but no! On
re-examining the Illustrator file at great magnification, the
fault became evident and may have printed as such!
 
D

David Gillen

An noise sounding like mantrid said:
Thanks for all the feedback. its been interesting finding out all the things
you can do even if in the end you cant make it 100% secure. That is not
important really so long as the average surfer is unable to, or cant be
bothered finding out how to.
IThe solution i opted for was to create a thumbnail at the same time as the
full size image is uploaded and have the thumbnail displayed and the full
size image only accessible to registered users. It works fine.
Thanks again I havent had a post that had so much feedback :)
Despite all my posting in the thread of how to "protect" your images, it was
really me just showing different approaches you could take, the bottom line is
the "average surfer" can very trivially get copies of your images.

If you want to protect them consider adding water marks. My understanding is
that then you can at least prove that an image was originally yours. but like
anything I would be surprised if there wasn't a way to circumvent that.

D.
 
D

dorayme

David Gillen said:
If you want to protect them consider adding water marks. My understanding is
that then you can at least prove that an image was originally yours. but like
anything I would be surprised if there wasn't a way to circumvent that.

Yes, watermarks are a good thing for those fiercely protective of
their images because when a user goes to the trouble of removing
them (straightforward enough for experienced Photoshop folk), the
owner can be reinforced in his self esteem.
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Members online

No members online now.

Forum statistics

Threads
473,792
Messages
2,569,639
Members
45,353
Latest member
RogerDoger

Latest Threads

Top