pdf-extraction

What This Skill Does

The pdf-extraction skill for OpenClaw is a powerful utility designed for developers and data analysts who need to programmatically interact with PDF documents. Built upon the robust pdfplumber library, this skill goes beyond simple text-to-string extraction. It provides granular access to the internal structure of PDF files, including character-level positioning, font metadata, line analysis, and complex table detection. Whether you are dealing with scanned reports, structured financial statements, or multi-column academic papers, this skill allows the OpenClaw agent to parse, interpret, and convert PDF data into machine-readable formats like CSV or structured JSON. It is an essential tool for automating document-heavy workflows that require high precision and spatial awareness.

Installation

To integrate this skill into your environment, run the following command in your terminal within the OpenClaw ecosystem:

clawhub install openclaw/skills/skills/lijie420461340/pdf-extraction

Ensure that you have the necessary system dependencies installed for pdfplumber (typically including libpoppler) to handle document rendering and extraction tasks.

Use Cases

This skill is highly versatile and serves several professional domains:

• Financial Data Processing: Automating the extraction of complex tables from bank statements or quarterly reports.
• Academic Research: Parsing large datasets or bibliographies from research papers for citation management.
• Legal Tech: Extracting specific clauses or metadata from legal contracts that maintain strict document formatting.
• Document Archiving: Converting legacy static PDF archives into clean, searchable, and processable database entries.

Example Prompts

1. "Extract all tables from this quarterly financial report and save them into a structured CSV file for me."
2. "Please scan pages 5 through 10 of this document and extract the text, ensuring you preserve the original layout and indentation."
3. "Identify the invoice total and the recipient company name from this PDF and provide them as a JSON object."

Tips & Limitations

• Tip: Use the 'layout=True' parameter if you are dealing with multi-column PDFs; it helps maintain the logical reading order.
• Tip: If a table is not being detected correctly, inspect the 'rects' or 'lines' of the page to verify if the lines are explicitly drawn in the PDF structure.
• Limitation: This skill is primarily for text-based PDFs. It does not perform Optical Character Recognition (OCR) on image-only PDFs. For those files, consider a pre-processing step using an OCR engine before feeding the results into this skill.