Digital printing and mobile shooting are the main ways to verify the validity of copyright of printed products containing digital watermarks. Therefore, the work aims to solve the problem that it is difficult to extract watermark in digital printing and mobile shooting. A digital watermarking algorithm based on discrete wavelet transform and singular value decomposition to resist digital printing/mobile shooting was proposed. Firstly, the host image was processed by two-stage discrete wavelet transform, and singular value decomposition was performed on the low-frequency sub-bands. The watermark after Arnold was scrambled was embedded into the diagonal matrix of singular value decomposition. Finally, the embedded watermark image was obtained by inverse wavelet transform. The peak signal to noise ratio (PSNR) containing watermark information reached 39.67. The normalized correlation coefficient (NC) under different attacks was above 0.89. The NC value in actual shooting test also reached 0.94, showing that watermark algorithm not only ensured invisibility but also had good resistance to common attacks in practical application of printing products. The watermark images collected from different brands of smart phones, printing devices and different kinds of paper can be extracted in printing and shooting scenes, which proves the effectiveness of the algorithm.