PageRange constructor

PageRange(from, to)

Creates a new page range object.

PageRange(from: number, to: number)

Parameter	Type	Description
from	number	The starting page zero-based index.
to	number	The ending page zero-based index. If it exceeds the index of the last page in the document, it is truncated to fit in the document on rendering.

int.MaxValue C# constant means the last page in the document.