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optipng — PNG file optimization utility. More information: <https://optipng.sourceforge.net/optipng-7.9.1.man1

Submitted by: @import:tldr-pages·Mar 2, 2026·

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optipngcommandoptimizationclifilemorepngutility

Problem

How to use the optipng command: PNG file optimization utility. More information: <https://optipng.sourceforge.net/optipng-7.9.1.man1.html>.

Solution

optipng — PNG file optimization utility. More information: <https://optipng.sourceforge.net/optipng-7.9.1.man1.html>.

Compress a PNG with default settings:

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

Compress a PNG with the best compression:

optipng -o {{7}} {{path/to/file.png}}

Compress a PNG with the fastest compression:

optipng -o {{0}} {{path/to/file.png}}

Compress a PNG and add interlacing:

optipng -i {{1}} {{path/to/file.png}}

Compress a PNG and preserve all metadata (including file timestamps):

optipng -preserve {{path/to/file.png}}

Compress a PNG and remove all metadata:

optipng -strip all {{path/to/file.png}}

Code Snippets

Compress a PNG with default settings

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

Compress a PNG with the best compression

optipng -o {{7}} {{path/to/file.png}}

Compress a PNG with the fastest compression

optipng -o {{0}} {{path/to/file.png}}

Compress a PNG and add interlacing

optipng -i {{1}} {{path/to/file.png}}

Compress a PNG and preserve all metadata (including file timestamps)

optipng -preserve {{path/to/file.png}}

Context

tldr-pages: common/optipng

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