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Gathering all the best ideas together,
The best solution for Video is to stream it and play in a dedicated
Flash (or other) Player where the URL
is hidden or hard to get.
Similarly for text files (these can even be encrypted and decoded in
RealTime by ActionScript/Javascript.
For pictures you can tile them using a programme to create 10’s
or 100’s of really small and obscurely named pictures. (Stops cache
fishing)
Then you need to stop PrintScreen, Copy+Paste & “Right Click
-> Save Target” or save image…
Here's some ActionScript & JavaScript code to prevent Copy+Paste or
PrintScreen.
http://blog.gilluminate.com/2006/4/25/prevent-copy-paste-and-print-screen-online
Here’s some code to prevent Right Click
http://www.dynamicdrive.com/dynamicindex9/noright.htm
All these tips will make it VERY VERY hard to get any data saved but
still never impossible.
Regards,
John Smith BEng, PgDip E-Commerce
Learning Materials Developer (NMCH)
Room A309,
Tel: +44 (0)141 331 3989
Fax: +44 (0)141 331 8312
-----Original Message-----
From:
Sent: 28 February 2008 11:48
To: [log in to unmask]
Subject: Re: files that can't be downloaded?
...or just hit print screen, open PS and new file, paste. There's no
way
round it.
-----Original Message-----
From:
[mailto:[log in to unmask]] On Behalf Of Richard
Glover
Sent: 28 February 2008 09:30
Subject: Re: files that can't be downloaded?
There is a program for Windows called Image Guardian, it basically
splits a
given image up into small tiles (of whatever size you choose), gives
them
all random names, generates some HTML to display them and disables hot
linking to your image. It also encrypts the HTML, not sure which method
it
uses though.
So the end user sees the whole image, but it is split up into tiles,
say
90
of them. To save the image they would have to save each one and arrange
them
manually.
I know it's not perfect but it's a step towards the goal.
Rich
-----Original Message-----
From:
[mailto:[log in to unmask]] On Behalf Of Peter Rayment
Sent: 28 February 2008 09:17
Subject: Re: files that can't be downloaded?
You could always put Javascript in the page to disable right click
although
this only does this and there are ways around this.
Peter
Neil Penry
C.UK>
To
Sent by:
Blackboard/Course
cc
info userslist
<BLACKBOARD-USERG
Subject
[log in to unmask] files that
can't be downloaded?
27/02/08 16:53
Please respond to
Blackboard/Course
info userslist
<BLACKBOARD-USERG
Hi all,
Does anyone know of a way of putting a file on Blackboard so that the
student cannot right-click and download it. Files are mainly text and
image
based but could be video. I am concerned about the Human Tissue act and
putting up documents which could include images that need to be
protected
under the terms of the HT act. Our medical staff aren't happy
'publishing'
files that could be downloaded to students' PCs even if they are within
a
Blackboard course/module and only available to genuine medical
students.
Neil
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Learning & Teaching Manager
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02920 875127
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