jpegtran

linux

Perform lossless transformation of JPEG files.

Options (3)

-fboolean

Mirror an image horizontally or vertically

Example: jpegtran {{[-f|-flip]}} {{horizontal|vertical}} {{path/to/image.jpg}} > {{path/to/output.jpg}}

boolean

Rotate an image 90, 180, or 270 degrees clockwise

Example: jpegtran {{[-ro|-rotate]}} {{90|180|270}} {{path/to/image.jpg}} > {{path/to/output.jpg}}

-gboolean

Convert the image to grayscale

Example: jpegtran {{[-g|-grayscale]}} {{path/to/image.jpg}} > {{path/to/output.jpg}}

Mirror an image horizontally or vertically

jpegtran [-f|-flip] horizontal|vertical path/to/image.jpg > path/to/output.jpg

Rotate an image 90, 180, or 270 degrees clockwise

jpegtran [-ro|-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 [-g|-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 WxH -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 WxH+X+Y path/to/image.jpg > path/to/output.jpg