Using Elasticsearch to query scanned PDF documents by employee name or ID

Question

I'm working on a project where I need to index and retrieve scanned PDF documents containing various employee records. Some of these documents include handwritten forms, and

My primary goal is to set up a system where I can simply type in an employee's name or employee ID in Elasticsearch and have it retrieved all of that employee’s related documents.

• Is Elasticsearch a suitable solution for querying scanned PDF documents
• Given my use case, is it necessary to add another database, or can I rely solely on Elasticsearch for indexing and retrieval? If a hybrid approach is recommended, what benefits would it offer?