The libraries
The PXM libraries in Sitecore contain paths to content items and page layout snippets.
The Libraries folder (/sitecore/Print Studio/Libraries) contains all library folders used for the PXM module. It contains the following libraries:
Library  | Description  | 
|---|---|
Renderers library  | Stores the default and custom renderers. Renderers are used to publish items, and they can be assigned to library items, snippets, and project items.  | 
Snippets library  | Stores all master snippets. A snippet is a collection of page items (text frames, images, and so on). Master snippets can be reused in different IDC projects.  | 
Content merge  | kept for backward compatibility  | 
Grids  | kept for backward compatibility  | 
Scripts  | kept for backward compatibility  | 
Soft texts  | kept for backward compatibility  | 
Tasks  | kept for backward compatibility  |