<h2>Creating Annotation Session</h2>
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<h2>Integration Instructions</h2>
1. Include this DBCAnnotatorClient class in your application
2. Create sessions when users want to annotate PDFs
3. Store session keys in your database linked to users/projects
4. Periodically retrieve annotations and save them to your database
5. Load existing annotations when creating new sessions
6. Clean up sessions when no longer needed