pdf-proof

Locate exact text coordinates in PDFs and generate HTML proof pages.

75|3|Updated Mar 31, 2026
One-click install
npx skills add https://github.com/metedata/pdf-proof --skill pdf-proof
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: pdf-proof
Source: https://github.com/metedata/pdf-proof/tree/main
Command: npx skills add https://github.com/metedata/pdf-proof --skill pdf-proof

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires pymupdf, Pillow, tesseract, and includes scripts (resource) and assets (resource) components.

What problem does it solve?

This Skill helps users move beyond unverified AI claims by producing evidence that specific values actually appear in a source PDF document.

Core Features & Use Cases

  • Visual value verification: Finds exact text coordinates, crops the surrounding area, and highlights the matched value for an audit trail.
  • Readback cross-check: Verifies the highlighted region by reading text back to confirm the match, reducing wrong-highlight risk.
  • Shareable proof output: Generates a standalone HTML proof page with a summary table and per-value proof cards.

Quick Start

Verify values from your PDF by asking for screenshot proof of each specific field or number you need confirmed.

Frequently Asked Questions about pdf-proof

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I verify specific values or clauses inside a PDF document?

PDF text highlighting for visual proof works by locating exact text coordinates using OCR, cropping the surrounding area, and overlaying a highlight on the matched value. It generates an HTML proof page with a summary table and per-value proof cards for review.

Can I generate screenshot proof of invoice totals from scanned documents?

Yes, you can generate screenshot proof from scanned documents. The process applies OCR to locate exact text coordinates, crops around the matched financial values, and outputs a standalone HTML page with highlighted screenshots as verification.

Does PDF visual verification work with Tesseract and PyMuPDF for contract review?

Yes, PDF visual verification works with Tesseract and PyMuPDF for contract review. These dependencies enable deterministic text search and coordinate-accurate cropping in scanned documents, allowing you to cross-reference clauses and highlight exact matches.

What is the best way to cross-reference financial forms without unverified claims?

The best way to cross-reference financial forms without unverified claims is using deterministic text search that produces visual evidence. By locating exact coordinates and highlighting matched values, you generate a standalone HTML proof page with an audit trail.

How do I reduce wrong-highlight risk during an invoice audit?

To reduce wrong-highlight risk during an invoice audit, use a readback cross-check mechanism. This verifies the highlighted region by reading text back to confirm it matches the target value before generating the final visual proof.