On Mon, Nov 26, 2007 at 01:13:12PM +0100, jan bahnsen wrote: > the idea is now, to exctract the information of the coordinates of > this box if the PDF, to e.g. overlay this area in the converted swf > with a white box, covering the content of this area. > > once a user has registered to see the whole contents, this white box > shall then be removed dynamically from the swf. > > any idea how this could be tackled?
Well, the easiest way so far to mark areas in SWF has been to make them "clickable", i.e. create a (e.g. HTTP-) link of the area size. The resulting rectangles can then easily be detected in the final SWF. (Even with swfdump, using the -u and -s options, but I'd recommend writing a specialized C program or python script) Another option would be to use rectangles of a specific color, but you would have to be sure that color will never appear "as such" in your PDFs. (in theory, this should be possible- you have 16,777,216 choices, after all) Greetings Matthias
