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docs/tools/pdf-to-json.md

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+---
+title: PDF to JSON
+description: Convert PDF files to structured JSON format using CPDF. Exports PDF internal structure as machine-readable JSON data.
+---
+
+# PDF to JSON
+
+Converts one or more PDF files into JSON format. The tool uses CPDF (Coherent PDF) to serialize the internal structure of each PDF into a machine-readable JSON representation. The output is always delivered as a ZIP archive.
+
+## How It Works
+
+1. Select one or more PDF files using the file picker.
+2. Click **Convert** to start processing. The conversion runs in a background web worker.
+3. A ZIP archive downloads containing one JSON file for each input PDF.
+
+The status bar shows progress through the conversion and ZIP creation stages.
+
+## Options
+
+This tool has no configurable options. Each PDF is converted to its full JSON representation.
+
+## Output Format
+
+- A `pdfs-to-json.zip` file containing `filename.json` for each input PDF.
+
+The JSON output represents the PDF's internal object structure, including page trees, font references, metadata, and content streams.
+
+## Use Cases
+
+- Inspecting the internal structure of a PDF for debugging or validation.
+- Extracting structured metadata and page properties programmatically.
+- Feeding PDF structure data into custom processing pipelines.
+- Auditing PDF documents for compliance by analyzing their object trees.
+
+## Tips
+
+- This tool outputs the raw PDF object structure, not extracted text content. If you need page text in JSON format, use [Prepare PDF for AI](./prepare-pdf-for-ai) instead.
+- For plain text extraction, [PDF to Text](./pdf-to-text) is more straightforward.
+- Large PDFs with complex structures produce very large JSON files.
+
+## Related Tools
+
+- [PDF to Text](./pdf-to-text)
+- [Prepare PDF for AI](./prepare-pdf-for-ai)
+- [Extract Tables](./extract-tables)