[issue27461] Optimize PNGs

[Carol Willing]

Change by Carol Willing :


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stage:  -> patch review

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[issue27461] Optimize PNGs

[Ville Skyttä]

Changes by Ville Skyttä :


Removed file: http://bugs.python.org/file43653/pngs.patch

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[issue27461] Optimize PNGs

[Ville Skyttä]

Ville Skyttä added the comment:

Updated patch against tip.

Before: 289426  total
After:  194638  total

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Added file: http://bugs.python.org/file43896/pngs.patch

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[issue27461] Optimize PNGs

[Ville Skyttä]

Ville Skyttä added the comment:

Sure, I plan to suggest this to sphinx as well.

One corresponding tool for JPEGs is jpegoptim and its --strip-all option, but 
there is only ./Mac/BuildScript/resources/background.jpg in the cpython source 
tree (which despite of the .jpg extension appears to be a PNG file so I don't 
want to touch that stuff), plus ./Lib/test/imghdrdata/python.jpg which isn't 
worth a patch alone :)

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[issue27461] Optimize PNGs

[STINNER Victor]

STINNER Victor added the comment:

> there is only ./Mac/BuildScript/resources/background.jpg in the cpython 
> source tree (which despite of the .jpg extension appears to be a PNG file so 
> I don't want to touch that stuff)

Oh funny, you're right: it's a PNG file :-)

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[issue27461] Optimize PNGs

[STINNER Victor]

STINNER Victor added the comment:

Hi, The idea is interesting, but IMO it would be more efficient to contribute 
to Sphinx, so all documentations will benefit of smallest pictures. There is a 
similar tool for JPEG. Victor

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nosy: +haypo

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[issue27461] Optimize PNGs

[Ville Skyttä]

New submission from Ville Skyttä:

Running PNGs through zopflipng makes them smaller, with no drawbacks. This 
patch was done with zopflipng version 1.0.1 with the -m option, and decreases 
the in-tree total size size of all *.png by almost 100KiB.

$ find -name "*.png" | xargs du -bc | tail -n 1  # before
291101  total

$ find -name "*.png" | xargs du -bc | tail -n 1  # after
194639  total

--
assignee: docs@python
components: Documentation
files: pngs.patch
keywords: patch
messages: 269929
nosy: docs@python, scop
priority: normal
severity: normal
status: open
title: Optimize PNGs
type: enhancement
Added file: http://bugs.python.org/file43653/pngs.patch

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