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30 lines
1.1 KiB
Plaintext
30 lines
1.1 KiB
Plaintext
---
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syntax: markdown
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tags: [tldr, common]
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source: https://github.com/tldr-pages/tldr.git
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---
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# pamscale
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> Scale a Netpbm image.
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> More information: <https://netpbm.sourceforge.net/doc/pamscale.html>.
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- Scale an image such that the result has the specified dimensions:
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`pamscale {{[-wid|-width]}} {{width}} {{[-h|-height]}} {{height}} {{path/to/input.pam}} > {{path/to/output.pam}}`
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- Scale an image such that the result has the specified width, keeping the aspect ratio:
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`pamscale {{[-wid|-width]}} {{width}} {{path/to/input.pam}} > {{path/to/output.pam}}`
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- Scale an image such that its width and height is changed by the specified factors:
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`pamscale {{[-xsc|-xscale]}} {{x_factor}} {{[-ysc|-yscale]}} {{y_factor}} {{path/to/input.pam}} > {{path/to/output.pam}}`
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- Scale an image such that it fits into the specified bounding box while preserving its aspect ratio:
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`pamscale -xyfit {{bbox_width}} {{bbox_height}} {{path/to/input.pam}} > {{path/to/output.pam}}`
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- Scale an image such that it completely fills the specified box while preserving its aspect ratio:
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`pamscale -xyfill {{box_width}} {{box_height}} {{path/to/input.pam}} > {{path/to/output.pam}}`
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