David Krings ramons-at-gmx.net |nyphp dev/internal group use| wrote:
birgunj birgunj wrote:
Dear All,
i am uploading ebooks on my website. i want to restrict user from
downloading or printing the book.user should only read the document
but cant not save or download or printing.
how do we do this ? can anybody help me? its very urgent.if any
software which can do it, then plz give me the name of that software
also.
thanks to all in advance.
humayoo
There were many discussions about this in the past months and they all
resulted to this being a futile attempt. In order to display the
content in a browser the users have to download the file. This is how
the WWW works. Printing is as easy by pressing Print Screen. There are
some attempts to stop caching, obfuscating the real source URL of the
file, and some tricks disabling the most obvious functions for
printing and saving, which may or may not work depending on browser used.
As I pointed out back then, you try to solve a management problem with
technology and that never works. Your ebooks need to be priced right
and be of such a high quality that the users do want to pay you for
them. If that doesn't fit your business model, seek out avenues other
than online distribution. The only good idea that I have is
self-desctructing CDs, which yet have to be invented.
Good luck, you will need it for what you want to do.
David
Not to be contrary :-) but there is *always* a way.
In this case there are social engineering approaches to the application
of technology which work, but they don't involve PHP any more than
building an HTML form or writing a PDF file might involve PHP. No, I
won't explain them, and anyway people who look for scripts and
"software" to protect their eBook websites don't usually commit adequate
resources to execute effectively.
People log into web pages they would never want to print or distribute
every single day of the year. It's not about prevention, but persuasion.
Think about that, and you'll see some possibilities.
-=john andrews
--
-------------------------------------------------------------
You never really know how good you can until someone competes against you right
in your own space. It's thrilling, invigorating, and empowering. Unless you
lose. Then it sucks. --John Andrews Competitive Webmaster and SEO Blogging at
http://www.johnon.com
_______________________________________________
New York PHP Community Talk Mailing List
http://lists.nyphp.org/mailman/listinfo/talk
NYPHPCon 2006 Presentations Online
http://www.nyphpcon.com
Show Your Participation in New York PHP
http://www.nyphp.org/show_participation.php
