P2PaLA is a layout analysis tool which recognizes structure types on a region level and baselines from a page based on pre-trained models. The recognition is currently integrated into the Expert Client (TranskribusX) for pre-trained models. In this process, the P2PaLA tool creates new text regions from trained structure types and optionally also baselines contained in those regions. These are the structure types that are tagged using Transkribus on region level. Please do not use whitespaces in those structure types and be careful with case sensitivity i.e. we recommend using only lowercase letters. Also, we recommend to use dashes (-) and underscores (_) as the only special character, although others may work too.