In some cases, "undoing" the action you performed will not have the same result as performing
the opposite action.
For example, if you have grouped a number of clipping paths:
- Undo group will restore the original situation (before
grouping).
- Ungroup will ungroup the grouped clipping paths, but if for example
during grouping a clipping path has been duplicated (required to become the desired result),
this duplication is not reversed.
Similarly, if you have converted CMYK (CMYK - 100% black) to Gray (Gray 17.75%
brightness):
- Undo Convert color to gray will restore the original situation (CMYK
- 100% black)
- Convert to CMYK (using Preferences) will use the settings defined in
the Preferences and may have a different result (e.g. CMYK - Cyan 71,86%, Magenta 65.84%,
Yellow 64.68%, Black 73.79%).