From Longman Dictionary of Contemporary Englishput/keep somebody in the pictureput/keep somebody in the pictureTELL/ORDER somebody TO DO somethingto give someone all the information they need to understand a situation, especially one that is changing quickly I’m just going now, but Keith will put you in the picture. → picture
Examples from the Corpus
put/keep somebody in the picture• Perhaps he did not like to argue with Jean-Claude, suspecting that my lover may have been put fully in the picture.• He put Maclean in the picture about his letter to Wilson.• Call it: putting you in the picture.• Then she remembered that she had promised to keep Sybil in the picture but decided that could wait as well.• Besides, I wanted to put you in the picture. 