You can add documents (PDF, .pptx, .docx) to your playlist much in the same way you'd add images or videos you've previously added to the content library.
To add a document, click on 'Add Spot' and select the desired document from your content library.
In case the selected document consists of multiple pages or slides, each page/slide will be added as a separate new Spot to your playlist. This enables you to adjust the settings (such as display duration and transitions) to your liking. The full playlist functionality is available for documents.
You can remove individual pages/slides from the playlist by removing the corresponding spots. Your original document in the content library will not be modified by this.