From: Hans Hagen <pragma@wxs.nl>
To: ntg-context@ntg.nl
Subject: Re: output file size with repeated image
Date: Tue, 14 Apr 2015 19:39:00 +0200 [thread overview]
Message-ID: <552D50B4.5010907@wxs.nl> (raw)
In-Reply-To: <552D4949.8090407@gmx.es>
On 4/14/2015 7:07 PM, Pablo Rodriguez wrote:
> Dear list,
>
> I have the following sample:
>
> \setupexternalfigure[location=default]
> \starttext
> \startmode[repeated-image]
> \dorecurse{10}{
> \dorecurse{10}{
> \dorecurse{10}{
> \externalfigure[cow]\input zapf\par}}}
> \stopmode
> \startmode[single-image]
> \externalfigure[cow]
> \dorecurse{10}{
> \dorecurse{10}{
> \dorecurse{10}{
> \input zapf\par}}}
> \stopmode
> \startmode[no-image]
> \dorecurse{10}{
> \dorecurse{10}{
> \dorecurse{10}{
> \input zapf\par}}}
> \stopmode
> \stoptext
>
> Output file sizes with different modes are the following:
>
> --mode=repeated-image 745KB
>
> --mode=single-image 303KB
>
> --mode=no-image 302KB
>
> Although the image is the same (and it is only embedded once) file size
> with repeated image is almost two and a half times that the version with
> a single image.
>
> Is this right or am I missing something?
(1) each reference to an image takes some 40 bytes (uncompressed)
(2) when you include the image n times you get 3 times as many pages
which means 400 more page descriptions etc, so you need to add 2 times
no image minus font overhead which is about what you see
context does some aggressive object sharing anyway so on the average the
pdf files produced are quite efficient
Hans
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next prev parent reply other threads:[~2015-04-14 17:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-14 17:07 Pablo Rodriguez
2015-04-14 17:39 ` Hans Hagen [this message]
2015-04-14 18:17 ` Pablo Rodriguez
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