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optipng: add preservation option (#2206)

This commit is contained in:
Starbeamrainbowlabs 2018-07-21 05:27:29 +01:00 committed by Agniva De Sarker
parent 9170ce572a
commit deece664b1

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@ -4,20 +4,24 @@
- Compress a PNG with default settings: - Compress a PNG with default settings:
`optipng {{file.png}}` `optipng {{path/to/file.png}}`
- Compress a PNG with best compression: - Compress a PNG with best compression:
`optipng -o{{7}} {{file.png}}` `optipng -o{{7}} {{path/to/file.png}}`
- Compress a PNG with fastest compression: - Compress a PNG with fastest compression:
`optipng -o{{0}} {{file.png}}` `optipng -o{{0}} {{path/to/file.png}}`
- Compress a PNG and add interlacing: - Compress a PNG and add interlacing:
`optipng -i {{1}} {{file.png}}` `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: - Compress a PNG and remove all metadata:
`optipng -strip all {{file.png}}` `optipng -strip all {{path/to/file.png}}`