# Code Library Documentation - CER Test Fixture

## Purpose
This fixture is used for Character Error Rate (CER) testing in the vector PDF corpus.

## Files
- `source.pdf` - Clean vector PDF with embedded text
- `ground_truth.txt` - Exact text content for CER comparison
- `README.md` - This file

## Content
libpdf - PDF Processing Library
Installation
pip install libpdf
Quick Example
from libpdf import Document
doc = Document('example.pdf')
text = doc.extract_text()
API Reference
Document.open(path)
Open...

## Expected CER
Target: < 0.5% character error rate when extracted by pdftract.

## Metadata
- Title: Code Library Documentation
- Author: Open Source Contributors
- Creator: Markdown
- Generated by: generate_vector_cer_corpus.py