poolMaxEntryCount property
This property determines the maximum number of concurrent documents that are held open in memory.
A low value (for example 1) results in low server memory usage, but can cause bottlenecks if you have more than one user that is viewing separate documents. A large number might be limited by the amount of available memory on your web application server, but it might also improve performance for the situation when many users are viewing documents.
The default value is 1000000.
Example
poolMaxEntryCount=10