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Groups > comp.sys.acorn.misc > #2848
| From | Martin Wuerthner <spamtrap@mw-software.com> |
|---|---|
| Newsgroups | comp.sys.acorn.misc |
| Subject | Re: Protected PDF Files |
| Date | 2011-12-07 16:16 +0100 |
| Organization | MW Software |
| Message-ID | <79bae83d52.martin@bach.planiverse.com> (permalink) |
| References | <523de26065see.sig@walkingingermany.invalid> <m2hb1c8msz.fsf@unknown-00-23-6c-8d-9e-26.lan> |
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.
--
Martin
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Martin Wuerthner MW Software http://www.mw-software.com/
RISC OS Software for Design, Printing and Publishing
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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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