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---
_comment: Do not remove front matter.
---
## Process specification
The process specification is a space-delimited, case-insensitive list of one or more of the following in any sequence:
action
: Applicable to the [`Process`](/methods/resource/process) method only. Specify zero or one of `crop`, `fill`, `fit`, or `resize`. If you specify an action you must also provide dimensions.
dimensions
: Provide width _or_ height when using the [`Resize`](/methods/resource/resize) method, else provide both width _and_ height. See [details](/content-management/image-processing/#dimensions).
anchor
: Use with the [`Crop`](/methods/resource/crop) and [`Fill`](/methods/resource/fill) methods. Specify zero or one of `TopLeft`, `Top`, `TopRight`, `Left`, `Center`, `Right`, `BottomLeft`, `Bottom`, `BottomRight`, or `Smart`. Default is `Smart`. See [details](/content-management/image-processing/#anchor).
rotation
: Typically specify zero or one of `r90`, `r180`, or `r270`. Also supports arbitrary rotation angles. See [details](/content-management/image-processing/#rotation).
target format
: Specify zero or one of `gif`, `jpeg`, `png`, `tiff`, or `webp`. See [details](/content-management/image-processing/#target-format).
quality
: Applicable to JPEG and WebP images. Optionally specify `qN` where `N` is an integer in the range [0, 100]. Default is `75`. See [details](/content-management/image-processing/#quality).
hint
: Applicable to WebP images and equivalent to the `-preset` flag for the [`cwebp`] encoder. Specify zero or one of `drawing`, `icon`, `photo`, `picture`, or `text`. Default is `photo`. See [details](/content-management/image-processing/#hint).
[`cwebp`]: https://developers.google.com/speed/webp/docs/cwebp
background color
: When converting a PNG or WebP with transparency to a format that does not support transparency, optionally specify a background color using a 3-digit or a 6-digit hexadecimal color code. Default is `#ffffff` (white). See [details](/content-management/image-processing/#background-color).
resampling filter
: Typically specify zero or one of `Box`, `Lanczos`, `CatmullRom`, `MitchellNetravali`, `Linear`, or `NearestNeighbor`. Other resampling filters are available. See [details](/content-management/image-processing/#resampling-filter).
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