How to Convert PDF to JSON Without Sending Files to a Server
Extracting structured data from PDFs is one of the most common — and most frustrating — data engineering tasks. Our PDF to JSON converter extracts text from digital PDFs entirely in your browser using pdf.js. Your file is never sent to any server.
Digital PDFs vs Scanned PDFs
Digital PDFs (created by word processors, exported from software, or generated programmatically) contain a text layer that can be read directly. Scanned PDFs store pages as images and require OCR to extract text. This tool supports digital PDFs only.
| PDF type | Text selectable? | Supported by this tool |
|---|---|---|
| Digital / native PDF | Yes | ✓ Supported |
| Scanned / image PDF | No | ✗ Requires OCR |
| Hybrid (mixed pages) | Partially | ⚠ Text pages extracted, image pages skipped |
Output Structure
Each page is extracted as a separate JSON object with a "page" number and "content" string. This per-page structure makes it easy to process individual sections, search for specific content, or feed pages to an LLM one at a time.
Privacy note
PDF parsing runs entirely in your browser via pdf.js. Your file is never transmitted to any server — suitable for sensitive documents like contracts, reports, and financial statements.
What to Do With Extracted JSON
After extraction, use the JSON validator to confirm the structure, the JSON to Table converter to scan content across pages, or feed the text content into an LLM pipeline for summarisation or entity extraction.
Extract PDF text to JSON — free and private
Upload a digital PDF and download the extracted text as structured JSON. No server upload required.