Turn PDFs in Google Drive into a searchable AI knowledge base

flowchart TD trig>"new PDF added to folder"]:::trig s0["extract text including scanned pages"]:::svc s1[["split text into chunks"]]:::mi s2["convert chunks into embeddings"]:::svc s3[("store chunks in knowledge base")]:::store s4["answer questions from chat"]:::svc trig --> s0 s0 -->|"one per each chunk of text"| s1 s1 --> s2 s2 --> s3 s3 --> s4 out[/"searchable AI knowledge base"/]:::out pay{{"instant answers without rereading documents"}}:::pay s4 --> out out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff