[xep-support] Re: JRE change produces different result (?)

Mark Cilia Vincenti markciliavincenti at gmail.com
Thu Apr 16 08:26:47 PDT 2009


Hi Ben,

Thanks for your answer. So your guess is that the quality of the output is
identical?


Regards,

Mark Cilia Vincenti


2009/4/16 <ben.m.wynn at rrd.com>

>
> Hi Mark,
>
> So, with no factual informaiton of my own, I'm going to assert that the
> difference is compression.  Since you didn't change the version of XEP, all
> the pdf streams that were produced before will still be present, but the
> bits that xep relies on java for may have changed.  I know java has a bunch
> of compression codec's built-in, including a license for LZW compression
> (used in tiff files).  One or more of the compression algorithms being 'more
> efficient' after you upgrade the JRE is the most likely culprit of the file
> size being slightly smaller.
>
> -Ben
>
> owner-xep-support at renderx.com wrote on 04/16/2009 03:22:05 AM:
>
>
> > Hi,
> >
> > Anyone got an answer to the below please? I'm sure a number of you
> > experimented with different JREs :)
> >
> >
> > Regards,
> >
> > Mark Cilia Vincenti
> >
>
> > 2009/4/14 Mark Cilia Vincenti <markciliavincenti at gmail.com>
> > Hi,
> >
> > I was clearing my hard disk space and to save space I uninstalled
> > JRE 1.5, since I already had the latest version of Sun's Java.
> > Then I noticed that XEP wasn't working, so I edited my xep.bat and
> changed:
> >
> > C:\Program Files\Java\jre1.5.0_06\bin\java
> >
> > to:
> >
> > C:\Program Files\Java\jre6\bin\java
> >
> >
> > XEP is now working again, but I've compared the same PDF output from
> > the older JRE with the output of the newer JRE and, despite not
> > having any visible differences (at least I'm not spotting
> > anything!), the file size is different. The older JRE produced a
> > 534KB file whereas the newer JRE produces a 476KB even though they
> > are using the same FO and XML.
> >
> > Since file size is not critical, because these files will be sent to
> > printers for printing, I am wondering if I should re-install JRE 1.5 or
> not.
> >
> > Does anyone know what kind of differences there would be, and
> > whether I should keep on using JRE6 or revert back to JRE 1.5 to
> > have the best quality?
> >
> >
> > PS: As a guideline, the FO uses TIFF images and SVG graphics, all in
> CMYK.
> >
> >
> > Regards,
> >
> > Mark Cilia Vincenti
>
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