If the photo you uploaded for the cover picture on your project is stretching, it may be because of the shape or size of the photo you have uploaded is not the proper size.
For the top of your company page, the photo should be 980 px wide x 280 px tall
For the top of a job posts, the photo should be 980 px wide x 400 px tall
If you are still having trouble, contact Wantedly Customer Relations Team from here!
Sorry for the inconvenience :(