Commit 3d340883 by Alex Wasson Committed by Sid Raval

Updated Post Processing Documentation to mention convert_options and source_file_options (#2381)

* Added convert_options and source_file_options documentation to the Post Processing README section

* made minor markdown changes
parent c0cf4b61
......@@ -660,6 +660,14 @@ JPGs will remain JPGs). `Paperclip::Thumbnail` uses ImageMagick to process
images; [ImageMagick's geometry documentation](http://www.imagemagick.org/script/command-line-processing.php#geometry)
has more information on the accepted style formats.
For more fine-grained control of the conversion process, `source_file_options` and `convert_options` can be used to pass flags and settings directly to ImageMagick's powerful Convert tool, [documented here](https://www.imagemagick.org/script/convert.php). For example:
```ruby
has_attached_file :image, styles: { regular: ['800x800>', :png]},
source_file_options: { regular: "-density 96 -depth 8 -quality 85" },
convert_options: { regular: "-posterize 3"}
```
ImageMagick supports a number of environment variables for controlling its resource limits. For example, you can enforce memory or execution time limits by setting the following variables in your application's process environment:
* `MAGICK_MEMORY_LIMIT=128MiB`
......
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