Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.sys.acorn.misc > #2861

Re: Protected PDF Files

Show all headers | View raw

In article <9737603e52.Gwyn@gwyn.abershock.com>, Gwyn
<gwyn@gwyn-oakley.org.uk> wrote:

> In message <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. 

[Snip details]

> > Then, you can convert it back to an unprotected PDF
> >file.

> I suspect there must be additional ways to add
> protection. Sometime ago I downloaded a pdf document that
> was tied the actual computer that did the download. It
> allowed printing from that computer and I was able to
> print to a postscript printer. However no matter what I
> tried I could not print postscript to file. I did find
> another way - I think it was to print to file with a
> different printer driver then decode this back - it is a
> while ago and the details are foggy. Of course when they
> made it hard the challenge of beating the protection was
> all that mattered...

Exactly - The only reason I tried exporting to Draw and
seeing if the Drawfile were editable as usual was to see if
I could!

I have not heard back from the sender after telling them how
easy it was to edit...

-- 
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>

Back to comp.sys.acorn.misc | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

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

csiph-web