Unfortunately we cannot make a 3D print from an image file, a PDF or a photo.
Before we can 3D print anything, we always need a 3D file. A 3D file is the virtual input that a 3D printer needs to print an object.
There are free apps that can transform photos into a 3D model. Please take note that a successful outcome for these apps strongly depends on the complexity of the object/photos.
You can get by designing a piece in 3D design software, by hiring a 3D designer to do the modeling for you or by 3D scanning an existing part.