ClarisDraw allows you to rotate most objects, including text and paint frames. However, the moment you double-click either of these types of objects to edit them, the will immediately snap to zero rotation - in other words, they revert while being edited to the rotation they had when you first created them. For text, that would be completely horizontal; for paint frames, that would be whatever rotation the paint frame had when it was created or placed in the document.
This feature is not "switchable" - it is always in effect. This can cause an issue if the orientation that makes it easiest to edit the image is different from the image's original orientation, or if you are working with scanned images, whose original orientation may not be straight up and down: every time you double-click to edit the image, it will rotate to its original orientation. For that reason, it's much better to start out right by scanning the image with the orientation set to the one you will ultimately want in your finished document.