Re: [NTG-context] Was: Opening external documents ... -> Can ConTeXt reduce size of images?

2013-01-08 Thread Hans Hagen

On 1/9/2013 12:34 AM, Martin Schröder wrote:

2013/1/8 Hans Hagen :

it's even worse ... all kind of color and other data is present is such a
file .. the pstopdf.rb script (comes with mkii) gets rid of some of that


We could reduce some of that during pdf inclusion (or use the new
build-in pdf library).


the library would then have to tweak a loaded pdf file which is a no-go 
with respect to mem usage


also, some automatic reduction demands a constant adaption of the 
heuristics


best keep away from that and leave it to other programs

Hans

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Re: [NTG-context] Was: Opening external documents ... -> Can ConTeXt reduce size of images?

2013-01-08 Thread Marco Patzer
On 2013–01–09 Hans Hagen wrote:

> the latest beta has this:
> 
> % \enabletrackers[graphics.programs]
> 
> \starttext
> 
> \externalfigure[cow.pdf][conversion=stripped]
> 
> \stoptext

Nice feature, indeed. It might save a preprocessing step. We
preprocess with

  -dProcessDSCComments=false

otherwise PDFs generated by external programs (OpenOffice, I'm
looking at you) in combination with particular fonts might wreak
havoc with the document they are included into. I don't know which
downsides this might have, though. In our workflow this leads to
more predictable results. Maybe someone with more insight of the PDF
internals could judge if it makes sense to add this option.

It looks like the presets are not hard-coded. What is the interface
to change the presets (screen, ebook, prepress)?

Marco


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Re: [NTG-context] Was: Opening external documents ... -> Can ConTeXt reduce size of images?

2013-01-08 Thread Martin Schröder
2013/1/8 Hans Hagen :
> it's even worse ... all kind of color and other data is present is such a
> file .. the pstopdf.rb script (comes with mkii) gets rid of some of that

We could reduce some of that during pdf inclusion (or use the new
build-in pdf library).

Best
   Martin
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Re: [NTG-context] Was: Opening external documents ... -> Can ConTeXt reduce size of images?

2013-01-08 Thread Hans Hagen

On 1/9/2013 12:04 AM, Matthias Weber wrote:

Thanks Hans,

I'll give this a try when I am in a daring mood and less busy.


the latest beta has this:

% \enabletrackers[graphics.programs]

\starttext

\externalfigure[cow.pdf][conversion=stripped]

\stoptext

Of course I cannot guarantee that the pdf gets stripped, but at least 
it's tried.



Matthias

On Jan 7, 2013, at 8:09 PM, Hans Hagen  wrote:


On 1/8/2013 1:00 AM, Matthias Weber wrote:


So, this clearly is not a  ConTeXt problem. But it causes me major headaches. 
In my workflow, I have dozens of images
that I prepare with Adobe Illustrator and save as pdf files that are still 
editable with Illustrator, i.e. that include another copy of the
file with layers etc. In other words, my pdf images are about 10 times as big 
as they need to be. I usually just reduce the file size with preview.
As this seems to be erroneous now, I am wondering:


it's even worse ... all kind of color and other data is present is such a file 
.. the pstopdf.rb script (comes with mkii) gets rid of some of that

normally at pragma we do such things either automatically (when graphics are 
put in repositories) or with acrobat in batch mode (doable if you get the 
graphics in advance) because doing such thing smanually for thousands of images 
is no fun

you can play with this:

\startluacode
local gsp = os.type == "windows" and "gswin32c" or "gs"
local gsc = "%s -q -dEPSCrop -sDEVICE=pdfwrite -dNOPAUSE -dSAFER -dNOCACHE -dBATCH 
-dProcessColorModel=/DeviceCMYK -sOutputFile=%s %s -c quit"
local pdp = "pdftops -eps %s %s"

figures.converters.pdf = {
xxx = function(oldname,newname)
local tmpname = oldname .. ".ps"
local command = string.format(pdp,oldname,tmpname)
os.execute(command)
local command = string.format(gsc,gsp,newname,oldname)
os.execute(command)
end
}

figures.registersuffix("xxx","pdf")
\stopluacode

\starttext

\externalfigure[cow.pdf][conversion=xxx]

\stoptext

pdftops comes with xpdf (also in minimals)

if needed I can add a standard converter for it

Hans


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 | www.pragma-pod.nl
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 | www.pragma-pod.nl
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Re: [NTG-context] Was: Opening external documents ... -> Can ConTeXt reduce size of images?

2013-01-08 Thread Matthias Weber
Thanks Hans,

I'll give this a try when I am in a daring mood and less busy. 

Matthias

On Jan 7, 2013, at 8:09 PM, Hans Hagen  wrote:

> On 1/8/2013 1:00 AM, Matthias Weber wrote:
> 
>> So, this clearly is not a  ConTeXt problem. But it causes me major 
>> headaches. In my workflow, I have dozens of images
>> that I prepare with Adobe Illustrator and save as pdf files that are still 
>> editable with Illustrator, i.e. that include another copy of the
>> file with layers etc. In other words, my pdf images are about 10 times as 
>> big as they need to be. I usually just reduce the file size with preview.
>> As this seems to be erroneous now, I am wondering:
> 
> it's even worse ... all kind of color and other data is present is such a 
> file .. the pstopdf.rb script (comes with mkii) gets rid of some of that
> 
> normally at pragma we do such things either automatically (when graphics are 
> put in repositories) or with acrobat in batch mode (doable if you get the 
> graphics in advance) because doing such thing smanually for thousands of 
> images is no fun
> 
> you can play with this:
> 
> \startluacode
> local gsp = os.type == "windows" and "gswin32c" or "gs"
> local gsc = "%s -q -dEPSCrop -sDEVICE=pdfwrite -dNOPAUSE -dSAFER -dNOCACHE 
> -dBATCH -dProcessColorModel=/DeviceCMYK -sOutputFile=%s %s -c quit"
> local pdp = "pdftops -eps %s %s"
> 
> figures.converters.pdf = {
>xxx = function(oldname,newname)
>local tmpname = oldname .. ".ps"
>local command = string.format(pdp,oldname,tmpname)
>os.execute(command)
>local command = string.format(gsc,gsp,newname,oldname)
>os.execute(command)
>end
> }
> 
> figures.registersuffix("xxx","pdf")
> \stopluacode
> 
> \starttext
> 
> \externalfigure[cow.pdf][conversion=xxx]
> 
> \stoptext
> 
> pdftops comes with xpdf (also in minimals)
> 
> if needed I can add a standard converter for it
> 
> 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
> -
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> Wiki!
> 
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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> wiki : http://contextgarden.net
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Re: [NTG-context] Was: Opening external documents ... -> Can ConTeXt reduce size of images?

2013-01-07 Thread Hans Hagen

On 1/8/2013 1:00 AM, Matthias Weber wrote:


So, this clearly is not a  ConTeXt problem. But it causes me major headaches. 
In my workflow, I have dozens of images
that I prepare with Adobe Illustrator and save as pdf files that are still 
editable with Illustrator, i.e. that include another copy of the
file with layers etc. In other words, my pdf images are about 10 times as big 
as they need to be. I usually just reduce the file size with preview.
As this seems to be erroneous now, I am wondering:


it's even worse ... all kind of color and other data is present is such 
a file .. the pstopdf.rb script (comes with mkii) gets rid of some of that


normally at pragma we do such things either automatically (when graphics 
are put in repositories) or with acrobat in batch mode (doable if you 
get the graphics in advance) because doing such thing smanually for 
thousands of images is no fun


you can play with this:

\startluacode
local gsp = os.type == "windows" and "gswin32c" or "gs"
local gsc = "%s -q -dEPSCrop -sDEVICE=pdfwrite -dNOPAUSE -dSAFER 
-dNOCACHE -dBATCH -dProcessColorModel=/DeviceCMYK -sOutputFile=%s %s -c 
quit"

local pdp = "pdftops -eps %s %s"

figures.converters.pdf = {
xxx = function(oldname,newname)
local tmpname = oldname .. ".ps"
local command = string.format(pdp,oldname,tmpname)
os.execute(command)
local command = string.format(gsc,gsp,newname,oldname)
os.execute(command)
end
}

figures.registersuffix("xxx","pdf")
\stopluacode

\starttext

\externalfigure[cow.pdf][conversion=xxx]

\stoptext

pdftops comes with xpdf (also in minimals)

if needed I can add a standard converter for it

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
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Re: [NTG-context] Was: Opening external documents ... -> Can ConTeXt reduce size of images?

2013-01-07 Thread Matthias Weber
Thanks Wolfgang - 

I believed that the question was easy enough as is, but that was of course 
short sighted.
The problem I described does not arise when one just typesets the file, 
everything is good.
What I did was to reduce its file size using OS X's preview. This has 
apparently been "improved"
so that it changes the behavior  wrt external links.

In case somebody wants to try:

Typeset

\setupinteraction[page=yes,state=start]
\starttext
\goto{click}[program(test.tex)]
\stoptext

Open test.pdf with Acrobat. Clicking on "click" opens test.tex with your 
designated TeX editor.
Close file in Acrobat.
Open test.pdf in Preview (OS 10.8, I am sure it behaved differently in earlier 
versions).
Export with "reduce file size" as option checked
Open exported file in Acrobat.
Clicking on "click" will try to access the absolute file path of the previously 
relative link. In the best case,
the finder will point to that file (instead of opening it). In the worst case, 
it will not be found.


So, this clearly is not a  ConTeXt problem. But it causes me major headaches. 
In my workflow, I have dozens of images
that I prepare with Adobe Illustrator and save as pdf files that are still 
editable with Illustrator, i.e. that include another copy of the
file with layers etc. In other words, my pdf images are about 10 times as big 
as they need to be. I usually just reduce the file size with preview.
As this seems to be erroneous now, I am wondering:

Is there an option in \externalfigure that will strip everything redundant from 
a pdf file?

Thanks again,

Matthias


On Jan 7, 2013, at 3:52 PM, Wolfgang Schuster  
wrote:

> 
> Am 07.01.2013 um 19:45 schrieb Matthias Weber :
> 
>> Dear All,
>> 
>> I used to write
>> 
>> \goto{\externalfigure[cuteimage]}[program(file.ext)]
>> 
>> to get an image, that, when clicked, will open an application that will open 
>> file.ext.
>> 
>> This currently still works on my Mac (10.8) with the TeXShop preview and 
>> with Skim.
>> I does not work anymore with Adobe Acrobat Reader. Acrobat now asks 
>> permission, but doesn't 
>> do anything when granted. Even worse, on another Mac with an older OS, Skim 
>> didn't open
>> the hyperlink either. On Windows, I couldn't find any program that would do 
>> the job, by I don't
>> know much about that part of the world.
>> 
>> Is there anything that has changed recently in the way these kind of 
>> hyperlinks must be written?
>> (I use MkII)
> 
> Your chance to get an answer will increase with a *working* minimal example.
> 
> Wolfgang
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