exported images do not have metadata

Submitted by pdknsk

Assigned to poppler-bugs

Link to original bug (#96939)

Description

In particular ICC profiles and XMP. While XMP isn't essential, ICC profiles are for color accuracy.

For JPEGs, it's relatively easy to patch a JFIF header into the file with the ICC profile.

https://www.w3.org/Graphics/JPEG/jfif3.pdf http://www.color.org/newiccspec.pdf (87)

Of course this doesn't solve the problem for other image types.

At the very least, a warning should be printed to alert the user about this.