This book includes original, peer-reviewed research papers from the 16th China Academic Conference on Printing and Packaging (CACPP 2025), held in Xi’an, China on November 13-15, 2025. The proceedings cover the recent findings in color science and technology, image processing technology, communication technology, mechanical and electronic engineering, materials and detection, printing and packaging technology, and so on. As such, the book is of interest to university researchers, R&D engineers and graduate students in the fields of printing and packaging engineering, color science, computer image, material science, computer science, communication technology, smart manufacturing technology, mechanical and electronic technology, and materials technology.