Clarification on methods of toggling maximum compression
Hey list, I've noticed at least three methods of setting what I think is the generated PDF to maximum compression. \setupbackend[level=9] \pdfcompresslevel9 \maximumpdfcompression Are these all redundant? Do they do different things? Do I need but one to achieve the desired maximum compression of the resulting PDF? -- Kip Warner -- Software Engineer OpenPGP encrypted/signed mail preferred http://www.thevertigo.com
On 11-8-2012 00:19, Kip Warner wrote:
Hey list,
I've noticed at least three methods of setting what I think is the generated PDF to maximum compression.
the official way, plays nicely with pdf standards:
\setupbackend[level=9]
pretty low level, might even disappear (overloaded):
\pdfcompresslevel9
low level, but wil stay:
\maximumpdfcompression
Are these all redundant? Do they do different things? Do I need but one to achieve the desired maximum compression of the resulting PDF?
keep in mind that max compression slows down processing and often not much is gained Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
On Sat, 2012-08-11 at 00:57 +0200, Hans Hagen wrote:
Are these all redundant? Do they do different things? Do I need but one to achieve the desired maximum compression of the resulting PDF?
keep in mind that max compression slows down processing and often not much is gained
Hey Hans. My document shrinks from about 70 MB to 20MB with compression. But back to my original question, do I need all three or are they all redundant and only one of them I actually need? If only one is necessary, should I just use \setupbackend[level=9] ? -- Kip Warner -- Software Engineer OpenPGP encrypted/signed mail preferred http://www.thevertigo.com
On 11-8-2012 01:00, Kip Warner wrote:
On Sat, 2012-08-11 at 00:57 +0200, Hans Hagen wrote:
Are these all redundant? Do they do different things? Do I need but one to achieve the desired maximum compression of the resulting PDF?
keep in mind that max compression slows down processing and often not much is gained
Hey Hans. My document shrinks from about 70 MB to 20MB with compression.
hm, suspicious
But back to my original question, do I need all three or are they all redundant and only one of them I actually need? If only one is necessary, should I just use \setupbackend[level=9] ?
yes, that's best because as soon as that command is called, the set value of 'level' is used, no matter what other values has been set never use \pdf* commands directly .. way too low level and use the oher command only for fast tests (i use it in small test files) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
On Sat, 2012-08-11 at 01:05 +0200, Hans Hagen wrote:
hm, suspicious
Really? It's over 300 pages in length and contains plenty of vector graphics (more text). But actually that 70 MB seems an overestimate and I must have been looking at something else.
yes, that's best because as soon as that command is called, the set value of 'level' is used, no matter what other values has been set
Here is the result of some experimentation: 23,396,929 Bytes using just \setupbackend[level=9]. 21,945,243 Bytes using the aforementioned, \pdfcompresslevel9, and \maximumpdfcompression. 23,396,827 Bytes using none of those three. So I guess I'm still not sure which one to use since the one you said should be sufficient doesn't seem to compress it fully.
never use \pdf* commands directly .. way too low level and use the oher command only for fast tests (i use it in small test files)
Understood. -- Kip Warner -- Software Engineer OpenPGP encrypted/signed mail preferred http://www.thevertigo.com
On 11-8-2012 01:26, Kip Warner wrote:
On Sat, 2012-08-11 at 01:05 +0200, Hans Hagen wrote:
hm, suspicious
Really? It's over 300 pages in length and contains plenty of vector graphics (more text). But actually that 70 MB seems an overestimate and I must have been looking at something else.
yes, that's best because as soon as that command is called, the set value of 'level' is used, no matter what other values has been set
Here is the result of some experimentation:
23,396,929 Bytes using just \setupbackend[level=9].
21,945,243 Bytes using the aforementioned, \pdfcompresslevel9, and \maximumpdfcompression.
23,396,827 Bytes using none of those three.
So I guess I'm still not sure which one to use since the one you said should be sufficient doesn't seem to compress it fully.
never use \pdf* commands directly .. way too low level and use the oher command only for fast tests (i use it in small test files)
I made \setupbackend[level=9] listen to that setting also if no 'format' is set. Also, in the report at the end of a run, the compress levels are reported so that you can check it. ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
On Sat, 2012-08-11 at 12:02 +0200, Hans Hagen wrote:
I made
\setupbackend[level=9]
listen to that setting also if no 'format' is set. Also, in the report at the end of a run, the compress levels are reported so that you can check it.
Thanks Hans. I'll use that when I pull the next nightly. -- Kip Warner -- Software Engineer OpenPGP encrypted/signed mail preferred http://www.thevertigo.com
participants (2)
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Hans Hagen -
Kip Warner