scour
optipng-bin
scour | optipng-bin | |
---|---|---|
5 | 4 | |
738 | 98 | |
0.8% | - | |
0.0 | 4.7 | |
10 months ago | 5 months ago | |
Python | JavaScript | |
Apache License 2.0 | MIT License |
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scour
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Is it possible to save multiple files as optimized SVGs at once?
You could install the optimizer Inkscape uses internally and process your files with a super simple shell script. When reading the inkscape command line help, it does not seem to offer any option to export optimized SVGs from there
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Convert pdf to optimized SVG from command line [Help]
Inkscape uses Scour under the hood for optimized SVG export.
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Batch convert svg icons into a symbol set?
First make sure all your icons are saved as 'Optimized SVG' to remove Inkscape specific data and unnecessary id-attributes. Inkscape uses 'Scour' for this under the hood, so you can just use that directly to convert your files from the command line. I recommend the options --strip-xml-prolog --remove-metadata --enable-id-stripping --renderer-workaround. Now you only need to replace the outermost ... with ... for each file and remove all attributes on it, except width, height viewBox and preserveAspectRatio. Since we've stripped the XML-declaration with Scour, simply concatenate all files, wrap the result in a new element and lastly give your symbols unique ids and make sure all remaining referenced ids are unique between symbols.
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Open Source Favicon Generation & Optimisation in 2022
The script optimised the SVG using Scour. This removes some metadata and also shortens IDs as well as strip out comments. For the PNG files we used OptiPNG on the maximum optimisation setting. This can be slow on larger files, but for favicons should not take long. Here’s the before and after comparison of files sizes for a particular favicon, using the script:
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Where to start?
I also recommend Inkscape, it also has scour built-in to it. When saving a SVG select the option "optimized SVG" which will give you options to pass to scour to lower the amount of markup there is. You can then do some hand editing after this to further remove any markup you don't want.
optipng-bin
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How I use Devbox in my Elm projects
This project uses HTMLMinifier, optipng, and zopfli to create a custom production Elm build pipeline. You can see how I make use of these tools in this build script. Here are the results in case you're interested. I used the same ideas from this project to build and deploy dwayne/elm-conduit, which you can learn more about in my article Yet Another Tour of an Open-Source Elm SPA.
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PSA: Use ZopfliPNG to compress your PNG assets
Did you compare to PNG crush and optipng? Those are what I used to use because they're easily installable Linux/brew packages.
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Problem with node_modules, optipng-bin
It seems that the package was updated around 2019 May to not do that -- https://github.com/imagemin/optipng-bin/commit/6bb7f1c2edab67297c7d72fa0bd604ecc214b9f1 -- published as version 6, so maybe you're using an older one.
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Open Source Favicon Generation & Optimisation in 2022
The script optimised the SVG using Scour. This removes some metadata and also shortens IDs as well as strip out comments. For the PNG files we used OptiPNG on the maximum optimisation setting. This can be slow on larger files, but for favicons should not take long. Here’s the before and after comparison of files sizes for a particular favicon, using the script:
What are some alternatives?
GimelStudio - Non-destructive, node based 2D image editor with an API for custom nodes
zopfli - Zopfli Compression Algorithm is a compression library programmed in C to perform very good, but slow, deflate or zlib compression.
svg.py - 🎨 Type-safe and powerful Python library to generate SVG files
squoosh - Make images smaller using best-in-class codecs, right in the browser.
gerbolyze - Directly render SVG overlays into Gerber and Excellon files
open-source-favicon-generation - Open source favicon generation: create your favicon from scratch then optimise it for modern and legacy browsers using free apps in 2022.
apysc - apysc is a Python frontend library to create html and js file, that has ActionScript 3 (as3)-like interface.
qoi - The “Quite OK Image Format” for fast, lossless image compression
occult - vpype plug-in to remove occulted lines in SVG files
svg-experiments - ✒️ A gallery of experiments with Scalable Vector Graphics (SVG) and interactive visualizations.
mac-cleanup-py - 👨💻 Python cleanup script for macOS