Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

On 2010-04-19 18:05:30 -0500, Gunnar Wolf wrote: The reasons not to want a document printed are quite easy to understand, but the mechanism is flawed. Given the setting you mention, you can just slap a red banner stating Confidential, do not print. If it is on a corporate setting, just state

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

On Tuesday 20 April 2010 12:16:26 Vincent Lefevre wrote: One sometimes tries to print PDF without reading them first. This is not with a PDF viewer, more with a printing utility such as lpr, though. At least such utilities should honor the printable flag (in order to protect the *user* from

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

Le mardi 20 avril 2010 à 12:37 +0200, Salvo Tomaselli a écrit : In my opinion, the more safety checks there are, the more stupid the users become. Without safety they have to be awake and careful to what they are doing. I’ve witnessed the exact opposite. The more stupid users are, the more

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

Salvo Tomaselli tipos...@tiscali.it writes: In my opinion, the more safety checks there are, the more stupid the users become. Without safety they have to be awake and careful to what they are doing. It depends on how frequent the action that you're wrapping in a safety check is. Deleting

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

Le Tuesday 20 April 2010 01:33:37, Russ Allbery a écrit : Why not put both a banner on the document and set the no-print flag to force a prompt at printing time? Defense in depth is almost always a good idea. There's a configuration option in KPDF (and okular, its KDE4 version) saying obey

PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

Hi, I have written a PDF that I have blocked for printing, etc. Acrobat Reader won't print it, because of the restrictions defined on the PDF file's content. However, KPDF accepts printing it, and extracting content from it, etc., even if these actions are unauthorized with acroread. Is it

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

On Mon, 19 Apr 2010 15:31:30 +0200 Merciadri Luca luca.mercia...@student.ulg.ac.be wrote: Hi, I have written a PDF that I have blocked for printing, etc. Acrobat Reader won't print it, because of the restrictions defined on the PDF file's content. However, KPDF accepts printing it, and

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

Neil Williams wrote: On Mon, 19 Apr 2010 15:31:30 +0200 Merciadri Luca luca.mercia...@student.ulg.ac.be wrote: Anti-features like locking and password protection are not supported and, if implemented, could make the free software tools appear non-free by restricting the functionality

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

I Rattan wrote: On Mon, 19 Apr 2010, Merciadri Luca wrote: yes. Thanks. I assume that this is for the same reason as Mr. Williams pointed out. Are _all_ the free PDF viewers running under Debian in accordance with this principle? -- Merciadri Luca See

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

Sjoerd Hardeman wrote: Pdf anti-features are fake security. Don't trust on them, never. And what do you suggest if one wants some real protection _and_ the benefits of a format like PDF? Thanks. -- Merciadri Luca See http://www.student.montefiore.ulg.ac.be/~merciadri/ I use PGP. If there is an

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

Twas brillig at 17:32:51 19.04.2010 UTC+02 when luca.mercia...@student.ulg.ac.be did gyre and gimble: Pdf anti-features are fake security. Don't trust on them, never. ML And what do you suggest if one wants some real protection _and_ the ML benefits of a format like PDF? Thanks. There is no

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

On 19/04/2010 17:32, Merciadri Luca wrote: Sjoerd Hardeman wrote: Pdf anti-features are fake security. Don't trust on them, never. And what do you suggest if one wants some real protection _and_ the benefits of a format like PDF? Thanks. If you have free software (ie software you have the

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

On Mon, Apr 19, 2010 at 10:39:03PM +0700, Mikhail Gusarov wrote: Twas brillig at 17:32:51 19.04.2010 UTC+02 when luca.mercia...@student.ulg.ac.be did gyre and gimble: Pdf anti-features are fake security. Don't trust on them, never. ML And what do you suggest if one wants some real

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

On Mon, 2010-04-19 at 15:52 +0200, Merciadri Luca wrote: Thanks. I assume that this is for the same reason as Mr. Williams pointed out. Are _all_ the free PDF viewers running under Debian in accordance with this principle? At least Evince can be convinced to provide this feature, if you toggle

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

In article 4bcc77a3.9080...@student.ulg.ac.be you wrote: And what do you suggest if one wants some real protection _and_ the benefits of a format like PDF? Thanks. It is simply not possible to publish something and protect it. The best protection in that case is reputation. Gruss Bernd --

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Sven Arvidsson s...@whiz.se writes: On Mon, 2010-04-19 at 15:52 +0200, Merciadri Luca wrote: Thanks. I assume that this is for the same reason as Mr. Williams pointed out. Are _all_ the free PDF viewers running under Debian in accordance with

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Sorry, my last message was actually rejected by the moderation robot (if this is a robot). Vincent Danjean vdanjean...@free.fr writes: On 19/04/2010 17:32, Merciadri Luca wrote: Sjoerd Hardeman wrote: Pdf anti-features are fake security. Don't

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Bernd Eckenfels bernd...@eckenfels.net writes: In article 4bcc77a3.9080...@student.ulg.ac.be you wrote: And what do you suggest if one wants some real protection _and_ the benefits of a format like PDF? Thanks. It is simply not possible to

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

Mikhail Gusarov dotted...@dottedmag.net writes: Twas brillig at 17:32:51 19.04.2010 UTC+02 when luca.mercia...@student.ulg.ac.be did gyre and gimble: Pdf anti-features are fake security. Don't trust on them, never. ML And what do you suggest if one wants some real protection _and_ the ML

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

Merciadri Luca dijo [Mon, Apr 19, 2010 at 05:32:51PM +0200]: Pdf anti-features are fake security. Don't trust on them, never. And what do you suggest if one wants some real protection _and_ the benefits of a format like PDF? Thanks. Thing is, PDF is a printing-oriented format. It is a close

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

Russ Allbery dijo [Mon, Apr 19, 2010 at 02:14:21PM -0700]: I think people are not understanding why users use this feature in some environments. Yes, sometimes it's a misguided attempt at DRM, but I've more often seen it inside a workplace as defense in depth against *mistakes*. One might,

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

Gunnar Wolf gw...@gwolf.org writes: Russ Allbery dijo [Mon, Apr 19, 2010 at 02:14:21PM -0700]: I think people are not understanding why users use this feature in some environments. Yes, sometimes it's a misguided attempt at DRM, but I've more often seen it inside a workplace as defense in

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

Merciadri Luca luca.mercia...@student.ulg.ac.be wrote: Sjoerd Hardeman wrote: Pdf anti-features are fake security. Don't trust on them, never. And what do you suggest if one wants some real protection _and_ the benefits of a format like PDF? Thanks. The PDF specification itself recommends

Re: PDF is blocked for printing, etc. OK for acroread (it behaves as expected), but KPDF allows me to print it, even if it is protected! Why?

Zitat von Jay Berkenbilt q...@debian.org: Merciadri Luca luca.mercia...@student.ulg.ac.be wrote: Sjoerd Hardeman wrote: Pdf anti-features are fake security. Don't trust on them, never. And what do you suggest if one wants some real protection _and_ the benefits of a format like PDF? Thanks.