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Postscript Printing Question

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  Postscript Printing Question Russell Hafter News <see.sig@walkingingermany.invalid> - 2012-01-25 16:07 +0000
    Re: Postscript Printing Question Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2012-01-25 17:44 +0100
      Re: Postscript Printing Question Martin Wuerthner <spamtrap@mw-software.com> - 2012-01-25 17:57 +0100
        Re: Postscript Printing Question Russell Hafter News <see.sig@walkingingermany.invalid> - 2012-01-25 17:22 +0000

#3424 — Postscript Printing Question

I have just tried to print a PDF file (217 KB) received
by e-mail.

Opening the file with !PDF and using the RISC OS PoScript 2
 Printer Driver the spool file was 15MB.

I left it to print while I drove to the Post Box and back,
and only 21% of the file had even found its way to the
printer.

Transfering it to the Windows XP machine, using Adobe Reader
and the dedicated HP 2100 PostScript driver produced a spool
file of less than 0.5 MB.

Why the huge difference?

-- 
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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#3425

On Wed, 25 Jan 2012 16:07:55 +0000 (GMT), Russell Hafter News 
<see.sig@walkingingermany.invalid> wrote:

> Opening the file with !PDF and using the RISC OS PoScript 2
>  Printer Driver the spool file was 15MB.
[...]
> and the dedicated HP 2100 PostScript driver produced a spool
> file of less than 0.5 MB.

At a guess, I'd say the PC is converting the PDF into Postscript 
instructions, while the RISC OS driver is trying to make a bitmap out 
of it (ouch!).


Best wishes,

Rick.

-- 
Best wishes,

Rick.

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#3426

In message <almarsoft.8316840455742971147@news.orange.fr>
          Rick Murray <heyrickmail-usenet@yahoo.co.uk> wrote:

> On Wed, 25 Jan 2012 16:07:55 +0000 (GMT), Russell Hafter News
> <see.sig@walkingingermany.invalid> wrote:

>> Opening the file with !PDF and using the RISC OS PoScript 2
>>  Printer Driver the spool file was 15MB.
> [...]
>> and the dedicated HP 2100 PostScript driver produced a spool
>> file of less than 0.5 MB.

> At a guess, I'd say the PC is converting the PDF into Postscript
> instructions, while the RISC OS driver is trying to make a bitmap out
> of it (ouch!).

No, that is not the case. The RISC OS PostScript driver never makes a 
bitmap out of anything that is not already a bitmap. It can produce 
huge output for some bitmaps though. If that was the cause of the 
problem, the PostScript 3 driver would help. However, the huge size 
could also be caused by the way !PDF interprets the PDF file. Of 
course, without the actual file, this is all speculation.

-- 
Martin
---------------------------------------------------------------------
Martin Wuerthner         MW Software      http://www.mw-software.com/
        RISC OS Software for Design, Printing and Publishing
---------------------------------------------------------------------

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#3429

In article <45e92d5752.martin@bach.planiverse.com>,
   Martin Wuerthner <spamtrap@mw-software.com> wrote:
> In message <almarsoft.8316840455742971147@news.orange.fr>
>           Rick Murray <heyrickmail-usenet@yahoo.co.uk>
> wrote:

> > On Wed, 25 Jan 2012 16:07:55 +0000 (GMT), Russell Hafter
> > News <see.sig@walkingingermany.invalid> wrote:

> >> Opening the file with !PDF and using the RISC OS
> >>  PoScript 2 Printer Driver the spool file was 15MB.
> > [...]
> >> and the dedicated HP 2100 PostScript driver produced a
> >> spool file of less than 0.5 MB.

> > At a guess, I'd say the PC is converting the PDF into
> > Postscript instructions, while the RISC OS driver is
> > trying to make a bitmap out of it (ouch!).

> No, that is not the case. The RISC OS PostScript driver
> never makes a bitmap out of anything that is not already a
> bitmap. It can produce huge output for some bitmaps
> though. If that was the cause of the problem, the
> PostScript 3 driver would help. However, the huge size
> could also be caused by the way !PDF interprets the PDF
> file. Of course, without the actual file, this is all
> speculation.

I suspect that it is a PDF of a scanned document, as there
is a rubber stamp and signature on the document.

(I assume that the German tax authorities no longer insist
that an invoice or receipt over a certain amount must be
certified with rubber stamp and signature, but I imagine
that some people never give up such practices.)

Exporting as draw gives a file of almost 16MB, which appears
to consist of a single object which is rather larger than
the original A4 contains far too much white space...

The PostScript 3 driver is no help, as the printer does not
understand PostScript 3...

-- 
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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