2. Create a new picture size.
3. Put your logo in it.
4. Select the logo layer and change the layer fill to 0.
5. Double-click the layer to open the layer style.
6. Check the projection and click the projection to set the parameters.
7. After setting, click OK, and the watermark will be ready. Click to save it as a picture with a transparent channel.
8. Complete the renderings.