PrizmDoc Viewer v13.11 Release - Updated
PAS
Developer Guide > PAS

Overview

PAS is a layer in front of PrizmDoc Server which is responsible for creating viewing sessions, saving and loading of annotations, and creating viewing packages (pre-converted content). Like your web application, PAS has privileged access to storage that you own (like a file system or database).

For an introduction to how PAS is part of the overall viewing architecture, see the Architecture Overview in our Getting Started guide.

For viewing functionality, your web application should only make REST API calls to PAS. PAS will then make calls to PrizmDoc Server on your behalf to ensure the conversion work is done. The only time your application should call PrizmDoc Server directly is when you need to perform non-viewing work, such as converting a file or burning annotations into a document.

We support the ability to do pre-conversion and long term caching of documents in a central location. To use this functionality, an external instance of a database will need to be configured to run with PAS.

PAS Clustering

PAS is designed to scale out well. In order to install and run PAS on multiple servers, you will need to consider the following:

For more information on installing PAS on a cluster, refer to the topic Run PAS on Clusters.

This section contains the following "How To" information:

For information on administering PAS, refer to Administering PrizmDoc Viewer > PAS.