birgunj birgunj wrote:
Dear All,
i need help in the following thing.
1. 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 ?
Impossible, really. DRM just gets broken.
If making it difficult is "good enough" -- you could look for a eBook
system vendor that supports this in their viewer plug-in. Acrobat might
even have some features like this, but I really don't know.
You must be aware that no matter what system you use, someone will
probably break it, and there will be a hack available for anyone who's
motivated to find and use. So these systems are only useful if "make it
somewhat harder to save/print" is good enough.
2.if any book have four author.one author text box ,i display but i
want to display more if neccessary by clicking add author more.
or
how to add more choices by press CLTRL.
The best way is probably to use javascript to output new input tags that
look like:
<input name="authors[]" .../>
and limit the number displayed to four.
Then on the server, loop over $_REQUEST['authors'] and do something with
the data. Don't forget to repeat your limit of four on the server -- the
javascript limit is just for nice user experience... you must validate
the data on the server.
please help me its very urgent. i am very tense about this.
thanks to all in advance
Good luck!
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