Theo Schmidt theo.schmidt@wilhelmtux.ch writes:
How about this one: http://www.skppsc.ch/1/downloads/de/Betrugspraevention_www.den-trick-kenne-i...
If you decompress that with
pdftk Betrugspraevention_www.den-trick-kenne-ich.ch.pdf output a.pdf uncompress
you can see that it contains 246 small adobe flash programs:
<</P<</TF(TEMPACCESS)>>/D 1491 0 R/N(Media clip for dmPageTrigger24)/CT(application/x-shockwave-flash)/Type/MediaClip/S/MCD>>
(Yes, file says "Macromedia Flash data (compressed), version 9" and gnash plays them (shows only blue background))
If you decompile the programs you see they refer to vitrium.com which says
"Smart Document Technology software to control and track PDFs and their content, while transforming PDFs into dynamic and interactive documents.
Track who is reading your PDFs and determine whether your content is being accessed by unauthorized readers; control access to your PDFs and deter information misuse; embed in-document forms to capture information on who is reading your PDFs and qualify them as sales leads."
Google finds
Peter Nieforth: I'm sure there are many ways to do it, but the technology that we have developed is Flash based. We are actually using a Flash application inside a PDF, and that Flash application is collecting the information and reporting it back to the publisher, in real-time.
"As a result, we know where a document came from and where its gets passed to."
-- http://www.stonetemple.com/articles/interview-peter-nieforth.shtml
-Timo