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Groups > comp.sys.acorn.misc > #2849

Re: Protected PDF Files

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In article <79bae83d52.martin@bach.planiverse.com>, Martin
Wuerthner <spamtrap@mw-software.com> wrote:
> In message <m2hb1c8msz.fsf@unknown-00-23-6c-8d-9e-26.lan>
>           Raymond Wiker
> <raw@unknown-00-23-6c-8d-9e-26.lan> wrote:

> > Russell Hafter News <see.sig@walkingingermany.invalid>
> > writes:

> >> I just received an invoice as a PDF attachment, not
> >> unusual in itself.

> >> The e-mail itself states:

> >> Please note that our invoices are now protected to
> >> ensure the integrity of the content. [...]

> > As far as I know, the PDF "protection" is worthless...
> > it is simply a flag that it is up to the application to
> > honour.

> Yes, but as far as I know all RISC OS software honours
> the protection flag. However, as soon as the flags allow
> the document to be printed (and they usually do, because
> that is the whole point of sending PDF invoices around),
> then even that does not mean anything because you can
> print to PostScript, which recovers all vector content
> without any protection. Then, you can convert it back to
> an unprotected PDF file.

And presumably there is no flag that says "do not export as
Drawfile"?

-- 
Russell
http://www.russell-hafter-holidays.co.uk
Russell Hafter Holidays         E-mail to enquiries at our domain
Need a hotel? <http://www.hrs.com/?client=en__blue&customerId=416873103>

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Protected PDF Files Russell Hafter News <see.sig@walkingingermany.invalid> - 2011-12-07 14:07 +0000
  Re: Protected PDF Files charles <charles@charleshope.demon.co.uk> - 2011-12-07 14:37 +0000
  Re: Protected PDF Files Raymond Wiker <raw@unknown-00-23-6c-8d-9e-26.lan> - 2011-12-07 15:43 +0100
    Re: Protected PDF Files Martin Wuerthner <spamtrap@mw-software.com> - 2011-12-07 16:16 +0100
      Re: Protected PDF Files Russell Hafter News <see.sig@walkingingermany.invalid> - 2011-12-07 15:56 +0000
        Re: Protected PDF Files Martin Wuerthner <spamtrap@mw-software.com> - 2011-12-07 17:38 +0100
          Re: Protected PDF Files Richard Porter <dontusethis@address.uk.invalid> - 2011-12-12 23:27 +0000
            Re: Protected PDF Files Jeremy Nicoll - news posts <jn.nntp.scrap007@wingsandbeaks.org.uk> - 2011-12-13 02:45 +0000
              Re: Protected PDF Files Martin Wynn <m.wynn@blueyonder.co.uk> - 2011-12-13 17:27 +0000
              Re: Protected PDF Files Richard Porter <dontusethis@address.uk.invalid> - 2011-12-28 21:46 +0000
                Re: Protected PDF Files Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-12-29 04:30 +0100
                Re: Protected PDF Files Russell Hafter News <see.sig@walkingingermany.invalid> - 2012-01-04 18:01 +0000
      Re: Protected PDF Files charles <charles@charleshope.demon.co.uk> - 2011-12-07 15:57 +0000
        Re: Protected PDF Files Martin Wuerthner <spamtrap@mw-software.com> - 2011-12-07 17:43 +0100
      Re: Protected PDF Files Gwyn <gwyn@gwyn-oakley.org.uk> - 2011-12-08 13:01 +0000
        Re: Protected PDF Files Russell Hafter News <see.sig@walkingingermany.invalid> - 2011-12-08 17:18 +0000
          Re: Protected PDF Files druck <news@druck.org.uk> - 2011-12-10 10:56 +0000
            Re: Protected PDF Files Chris Evans <chris@cjemicros.co.uk> - 2011-12-12 11:58 +0000
              Re: Protected PDF Files Richard Porter <dontusethis@address.uk.invalid> - 2011-12-12 23:02 +0000
            Re: Protected PDF Files Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-12-12 16:57 +0100
              Re: Protected PDF Files druck <news@druck.org.uk> - 2011-12-13 21:05 +0000
                Re: Protected PDF Files NedA <news@ned.uk.invalid> - 2011-12-13 22:04 +0000

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