🚀 go-pugleaf

Duncan wrote:
> I was thinking of providing information, in my small business, on CD but
am
> worried if the photos and other files are copied.
>
> Is there anyway I can make my CD's such they are impossible to copy in
total
> or even the odd files.
>
> Any help much appreciated.
>
> Duncan

Photos can be invisibly watermarked using a system such as DigiMarc
(www.digimarc.com). They used to offer a free service for those wishing to
protect less than 100 images per annum, but this has since been withdrawn -
it's still quite competitively priced, depending on the number of images you
wish to protect.

PDFs can be protected using Adobe's in-built protection tools (providing you
create them using Acrobat, of course). You can add a permanent signature
which cannot be removed or altered and the documents are instantly
identifiable as yours.

Whilst this doesn't prevent people copying the CDs themselves, it does
provide a method whereby the individual files and images are protected. In
the case of Digimarc you will be given a unique number which is embedded
into the images which instantly identifies them as yours.

Whole-disc protection is very costly, I believe.


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