From 6ae53a789f5d8c3563656f44f3ecbb044df9e05f Mon Sep 17 00:00:00 2001
From: ev-john <56849582+ev-john@users.noreply.github.com>
Date: Fri, 16 Oct 2020 10:14:46 +0100
Subject: [PATCH] jpegtran: add page (#4695)

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 create mode 100644 pages/linux/jpegtran.md

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+# jpegtran
+
+> Perform lossless transformation of JPEG files.
+> More information: <https://linux.die.net/man/1/jpegtran>.
+
+- Mirror an image horizontally or vertically:
+
+`jpegtran -flip {{horizontal|vertical}} {{path/to/image.jpg}} > {{path/to/output.jpg}}`
+
+- Rotate an image 90, 180 or 270 degrees clockwise:
+
+`jpegtran -rotate {{90|180|270}} {{path/to/image.jpg}} > {{path/to/output.jpg}}`
+
+- Transpose the image across the upper left to lower right axis:
+
+`jpegtran -transpose {{path/to/image.jpg}} > {{path/to/output.jpg}}`
+
+- Transverse the image across the upper right to lower left axis:
+
+`jpegtran -transverse {{path/to/image.jpg}} > {{path/to/output.jpg}}`
+
+- Convert the image to grayscale:
+
+`jpegtran -grayscale {{path/to/image.jpg}} > {{path/to/output.jpg}}`
+
+- Crop the image to a rectangular region of width `W` and height `H` from the upper left corner, saving the output to a specific file:
+
+`jpegtran -crop {{W}}x{{H}} -outfile {{path/to/output.jpg}} {{path/to/image.jpg}}`
+
+- Crop the image to a rectangular region of width `W` and height `H`, starting at point `X` and `Y` from the upper left corner:
+
+`jpegtran -crop {{W}}x{{H}}+{{X}}+{{Y}} {{path/to/image.jpg}} > {{path/to/output.jpg}}`