# Base Module

This section describes the functions you use to start, configure, and terminate a session with the library.

This section includes code samples that demonstrate how functions and structures are used. These code samples are provided “as is”, without warranty of any kind.

Topics

- PDF Library Session Functions
- Library Session Functions
- License module
- Custom Memory Allocation
- Custom Report
- Custom API Trace functions
- Custom Progress-Indicator
- Fundamental Type Definitions

Type Definitions

- `A3DCallbackAPITrace`

Functions

- `A3DDllSetCallbackAPITrace()`

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