As others have noted, this comes from people expecting the slides to work as a document without the presenter. This is a bad idea (other document formats are be

As others have noted, this comes from people expecting the slides to work as a document without the presenter. This is a bad idea (other document formats are better for that). But you can satisfy that desire in one of two ways: 1) Add lots of speaker notes, containing all the detail you presented, so that the combination of the presentation and speaker notes gives the self-contained information. 2) Write a separate self-contained document that contains all the information of the presentation, with slides containing a few words becoming section headings, and slides containing a useful image or chart becoming figures with captions. That'll be more useful than a corporate-style presentation deck would have been, but contain all the necessary information. Add a note to the top saying "This document contains all the information previously given in an X minute presentation. NAME is available to re-present this material on request."