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2019-01-04 Jay Berkenbilt <ejb@ql.org>
+ * Add new option --optimize-images, which recompresses every image
+ using DCT (JPEG) compression as long as the image is not already
+ compressed with lossy compression and recompressing the image
+ reduces its size. The additional options --oi-min-width,
+ --oi-min-height, and --oi-min-area prevent recompression of images
+ whose width, height, or pixel area (width * height) are below a
+ specified threshold.
+
* Add new option --collate. When specified, the semantics of
--pages change from concatenation to collation. See the manual for
a more detailed discussion. Fixes #259.