Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I want to change the EXIF orientation tag in my JPEG images but without actual rotating of them. I want to do this to use them as a test case for an application I made.

How I can do that in Linux? Can I do it with exiftool? And if so, how?

share|improve this question
add comment

1 Answer

You can retrieve the existing orientation information via exiftool as follows:

exiftool -Orientation -n image.jpg

This will display the internal value of the orientation information held in the MIE tags. You can return the value as an English string by omitting the -n flag. You can find additional information here regarding particular rotation/orientation values.

Changing the orientation data with exiftool can be done as follows:

exiftool -Orientation=1 -n image.jpg

Here, the orientation is set to 1, indicating no rotation. These numbers are defined as per the EXIF specification; you can see what effect different rotation values have in the link above.

(note: you must use the -n argument when setting orientation to indicate that the value is numeric. If you forget, exiftool will interpret the orientation=x number as a string and set the wrong rotation ie. exiftool -orientation=1 image.jpg will actually set the orientation to 3 which is 'Rotate 180')

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.