Turning a folder of PDFs into a webhook that returns JSON

说明与用途

使用 OCR.space 的 n8n 工作流，从 PDF 中提取结构化数据，并通过 webhook 返回 JSON/CSV。

问题

Extracting structured data from PDFs at scale without expensive OCR services or custom infrastructure.

结果

Simplified PDF extraction workflow that eliminates the need for self-hosted OCR infrastructure, reduces cost, and provides structured output via webhook.

工作流

• Receive PDF URL or upload via webhook POST
• Send PDF to OCR.space API
• Parse OCR text into structured JSON/CSV using layout heuristics
• Append extraction to Google Sheet (optional)
• Return plain text, JSON, and CSV in webhook response

证据

I ended up solving this with a single n8n workflow instead of a custom service

来源

OCR.space, which has a genuinely usable free tier (25k requests/month, no card required)

来源