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Optimize the size of PNG images by running the following two commands:
```
find . -name *.png -exec pngquant -f --skip-if-larger {} -o {} \;
find . -name *.png -exec optipng -o5 {} \;
```
These two commands save about 8.9M (64%). Evaluate the size with
```
find . -name *.png -print0 | xargs -0 du -csh
```
References:
* pngquant: https://pngquant.org
* optipng: http://optipng.sourceforge.net
Member
|
Nice. Thanks! |
Member
|
If I recall, the PNGs from the repo aren't deployed on the web site. So, this only helps for ebooks and pdf. |
peff
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Jun 3, 2016
This is basically just a mass-import of every png in progit2's book/ directory, which appears to be what was done originally by @schacon when the book was initially imported. The main goal is to pick up any fixes (such as the one in progit/progit2#178), but it's hard to tell which images have changed content. In progit/progit2#424, all of the images were png-optimized, so just looking at the tree-diff doesn't say much. Literally every file image was touched there. Still, these are the images going into the current builds of the ebooks, so one assumes they are what we should be showing.
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Optimize the size of PNG images by running the following two commands:
These two commands save about 8.9M (64%). Evaluate the size with
References: