“4th International Conference on 3D Printing and Additive Manufacturing” will be held in Paris, France during May 21-22, 2021. Major attractions of this event would revolve around keynote presentations, oral presentations and poster presentations. This year we are focusing on the theme “3D Printing: The manufacturing technology that will change the world”. The term “3D printing” is progressively utilized as an equivalent word for Additive Manufacturing. It transforms digital 3D models into strong solid by structure them up in layers. The innovation was first invented during the 1980s, and since that time has been utilized for rapid prototyping (RP). 3D Printing has been applied in engineering and healthcare since the beginning of 20th century. For the manufacturing of custom prosthetics and dental inserts, it was first utilized and after that on wards the medicinal applications for 3D printing has advanced essentially. 3D printing is the path towards making cell structures in a limited space using 3D printing innovation, where cell limit and suitability are spared inside the printed construct. 3D printing adds to huge advances in the medical field of tissue engineering by allowing for research to be done on innovative materials called biomaterials. 3D bio printers are streamlined to have the capacity to print skin tissue, heart tissue, and veins among other essential tissues that could be appropriate for surgical treatment and transplantation. This innovation is utilized in the fields of adornments, footwear, mechanical structure, design, engineering and construction (AEC), automotive, aviation, dental and medical industries, education, geographic data frameworks, structural building, and numerous others.