-format %c prints nothing

[yecril71pl]

convert rose: -set comment 'Rose is a rose is a rose is a rose' rose.png
identify -format %c rose.png

[dlemstra]

The comment is not stored when saving the image as a PNG file and that is why you don't get the comment when reading the image after you have saved it.

[yecril71pl]

This code sample is taken from the official documentation.

[dlemstra]

It looks like our documentation contains a mistake then. The example has been updated to use jpg instead of png.

[yecril71pl]

The comment is stored in PNG and can be retrieved as %[comment].