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oxipng — Losslessly improve compression of PNG files. More information: <https://manned.org/oxipng>.

Submitted by: @import:tldr-pages··
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Problem

How to use the oxipng command: Losslessly improve compression of PNG files. More information: <https://manned.org/oxipng>.

Solution

oxipng — Losslessly improve compression of PNG files. More information: <https://manned.org/oxipng>.

Compress a PNG file (overwrites the file by default):
oxipng {{path/to/file.png}}


Compress a PNG file and save the output to a new file:
oxipng --out {{path/to/output.png}} {{path/to/file.png}}


Compress all PNG files in the current directory using multiple threads:
oxipng "*.png"


Compress a file with a set optimization level (default is 2):
oxipng {{[-o|--opt]}} {{0|1|2|3|4|5|6|max}} {{path/to/file.png}}


Set the PNG interlacing type (0 removes interlacing, 1 applies Adam7 interlacing, keep preserves existing interlacing; default is 0):
oxipng {{[-i|--interlace]}} {{0|1|keep}} {{path/to/file.png}}


Perform additional optimization on images with an alpha channel:
oxipng {{[-a|--alpha]}} {{path/to/file.png}}


Use the much slower but stronger Zopfli compressor with max optimization:
oxipng {{[-Z|--zopfli]}} {{[-o|--opt]}} max {{path/to/file.png}}


Strip all non-critical metadata chunks:
oxipng --strip all {{path/to/file.png}}

Code Snippets

Compress a PNG file (overwrites the file by default)

oxipng {{path/to/file.png}}

Compress a PNG file and save the output to a new file

oxipng --out {{path/to/output.png}} {{path/to/file.png}}

Compress all PNG files in the current directory using multiple threads

oxipng "*.png"

Compress a file with a set optimization level (default is 2)

oxipng {{[-o|--opt]}} {{0|1|2|3|4|5|6|max}} {{path/to/file.png}}

Set the PNG interlacing type (`0` removes interlacing, `1` applies Adam7 interlacing, `keep` preserves existing interlacing; default is `0`)

oxipng {{[-i|--interlace]}} {{0|1|keep}} {{path/to/file.png}}

Context

tldr-pages: common/oxipng

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