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Discussion about special ways to protect a PDF
Ath:
There is not any special protection system ?. By example that OCR don't go in a PDF.
:-[
-Contro (September 06, 2013, 07:54 PM)
--- End quote ---
OCR can work off of screenshots, so there is no way to 'prevent' that.
def:
If you want to protect a PDF, you can try a DRM solution. DRM makes copying and/or editing a PDF somewhat harder, and some DRM implementations are even intended to prevent screenshots (so no OCR possible unless someone cracks/removes the DRM).
But I'm not sure from this thread if protecting a PDF is actually your goal.
Contro:
There is not any special protection system ?. By example that OCR don't go in a PDF.
:-[
-Contro (September 06, 2013, 07:54 PM)
--- End quote ---
OCR can work off of screenshots, so there is no way to 'prevent' that.
-Ath (September 07, 2013, 03:12 AM)
--- End quote ---
Oh damn !!!!!!!. I suppose so.
>:(
Contro:
If you want to protect a PDF, you can try a DRM solution. DRM makes copying and/or editing a PDF somewhat harder, and some DRM implementations are even intended to prevent screenshots (so no OCR possible unless someone cracks/removes the DRM).
But I'm not sure from this thread if protecting a PDF is actually your goal.
-def (September 07, 2013, 06:38 AM)
--- End quote ---
How is that ?
Running to the browser for DRM.
What the meaning ?
:o
def:
I mean "Digital Rights Management" (DRM), i.e. copy protection. Many e-book vendors use it to protect books (although the term DRM is not restricted to e-books). There are several (incompatible) DRM schemes. Essentially, the PDF is encrypted and can only be viewed if the PDF creator allows it. To open a DRM protected PDF one needs a special PDF reader application (usually provided free of charge by the vendor that sells the DRM solution).
2 PDF DRM solutions (both prevent screenshots of a protected PDF):
Drumlin Security (free of charge, at least the last time I looked)
LockLizard (very expensive)
No idea if this is what you're looking for.
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