[FM Discuss] Optimizing images for printing

[Elisa Godoy de Castro Guerra]

2011/11/2 Cedric Gémy <cedric.gemy at gmail.com>

> lo everyone
>
> trouble with pictures for web is that they are 2 small for print purpose.
> I'm actually trying to layout Scribus manual in Scribus and get low res
> pictures even at small size (only halt of the page width). I was wishing to
> do an XSLT conversion Script, but this picture quality is a pb that
> actually stops me.
>
> What we'd need is at least IMO :
> - be able to upload full size pictures (which might not be enough, but
> better)
> - have an automatic resizing feature for the website, at least at display
> if not applied to image itself (sources pictures could be stored in a
> different directory PDF could une one directory and the screen formats
> another one)
> - save as PNG for best quality. JPEG is very bad with lines. That might
> affect text too
> - the right size of an image for print process is :
> (widthinpixels*(targetresolution/actualresolution)) idem for height, but it
> depends of the workflow you have
>
>
Furthemore when the web view host image larger than 650 px of width
(because the content is limited in 650px), i think it would be useful if
the image could be see at his original size. (Maybe is the 2d point of
Cedric) Some js extend the image as the original view or like wordpress
use, a clic redirect to the original image.

A lot of Booki user are not very familiar with image process, we can help
them in creating some automatic tool into Booki. The actual solution is
less quality than Gimp. We can imagine asking them to upload the best big
image they could and after booki transform it for web and printing view (if
possible, if not => message).


Elisa

CU
>
>
> 2011/11/2 helen varley jamieson <helen at creative-catalyst.com>
>
>> i'm not a graphics expert, & also i'm less often thinking about printing
>> & more often about web so i tend to make everything as low-res as possible.
>> i guess a guideline would be useful, especially including the standard
>> printed-out size of the manual so that you can try to make the actual image
>> the right size when you insert it.
>>
>> h : )
>>
>>
>> On 2/11/11 9:05 AM, adam wrote:
>>
>>> i think png is best...
>>>
>>> adam
>>>
>>> On 11/01/2011 10:25 PM, Tomi Toivio wrote:
>>>
>>>> Hi,
>>>>
>>>> Does somebody have a procedure for optimizing manual images for
>>>> printing?
>>>> What is the best file format? What is the best way to reduce the image
>>>> size
>>>> without the quality being reduced? GIMP? Any guidelines for this?
>>>>
>>>> Actually there should probably be a manual on how to use pictures on
>>>> FLOSS
>>>> Manuals...
>>>>
>>>> There have been some timeout errors when trying to publish books on the
>>>> Finnish site, after debugging this for a while it started to seem like
>>>> the
>>>> web hosting organization had just changed timeout settings when they
>>>> updated the servers about a week ago. Now the timeout on our server is
>>>> 120,
>>>> which means that usually the book publishing process gets a timeout when
>>>> trying to publish the PDF. Sometimes it manages to do it in less than
>>>> 120
>>>> seconds and the process finishes without error. So the timeout settings
>>>> should be increased to at least 360 or more?
>>>>
>>>>
>>>>
>>>>
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>>>>
>>>
>>>
>>
>> --
>> ______________________________**______________________________
>>
>> helen varley jamieson: creative catalyst
>> helen at creative-catalyst.com
>> http://www.creative-catalyst.**com <http://www.creative-catalyst.com>
>> http://www.**avatarbodycollision.org <http://www.avatarbodycollision.org>
>> http://www.upstage.org.nz
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>>
>
>
>
> --
> Cédric Gémy
> -----------------------------------------------------------------
> Formationlibre.org
> FlossManualsFrancophone
> Association Francophone des Graphistes Libres
>
>
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