Paul,
Good idea determining if we are speaking about the same thing. Perhaps PhotoPaint does not do what I'm attempting to do so maybe it would be most efficient to trace my exact steps for your analysis.
Using Photo Paint X 4 (included within the CorelDRAW X 4 Suite) I (a) opened a JPEG file of a surf board-like image but with one end chopped off. My goal is to extend the chopped off end to angle it similar to a surf board, (b) following the "Help" instructions I opened "Path Tool" within the Tool Bar, (c) clicked on the "Shape" icon as instructed, (d) added nodes on the blunt end of the object in order to drag it down to a surf board-like end, (e) clicked on the "Add Nodes" icon as instructed, (f) re-clicked on the "Shape" icon as instructed, (g) dragged each node with attached segment line as instructed until the blunt end of the image formed the perfect surf board-line end I desired.
To save this completed image I (a) opened the "File" and selected "Save As . . . ." [note: this was prior to asking my Forum question and receiving your answer], (b) chose the .jpg format. All seemed well but when I opened the saved .jpg file the original image was present without any of the changes I had competed as described above. Returning to the "Help" files I noted within the "Managing Paths" segment that once an image has been changed as desired then I should export a path by clicking the flyout button in the Path Docker, click Export, choose a file name as well as select the format to use from the "Save as type" list box. At this point I noted, as described in my intial posting, that only four formats are available for selection: CMX, AI, CMS 5.0, and DWG. JPEG is not available for selection.
All worked so well in adding and shaping the nodes as I've described in my second paragraph above --- but there was no way to save my creation in JPEG.
Thank you for your interest and help.