A picture processing method and apparatus, and a storage medium are provided. First picture information is obtained from a first container, the first picture information being presented as a first picture on a first picture layer. A screenshot picture information is obtained by taking a screenshot of a second container containing a plurality of pictures. The screenshot picture information includes second picture information in the second container, and the second picture information is presented as a second picture on a second picture layer, where the plurality of pictures form sub-pictures of the second picture. The first picture information and the screenshot picture information are combined, to obtain a combined picture of the first picture and the plurality of pictures in a single combining operation.