pdfrs 0.1.4

A CLI tool to read/write PDFs and convert to/from markdown
Documentation 
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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>pdfrs WASM Demo</title>
  <style>
    body { font-family: sans-serif; max-width: 900px; margin: 2rem auto; padding: 0 1rem; }
    textarea { width: 100%; height: 200px; font-family: monospace; box-sizing: border-box; }
    button { padding: 0.5rem 1rem; font-size: 1rem; margin-top: 0.5rem; margin-right: 0.5rem; }
    button:disabled { opacity: 0.5; cursor: not-allowed; }
    .controls { margin: 1rem 0; }
    .viewer-section { margin-top: 2rem; border-top: 1px solid #ccc; padding-top: 1rem; }
    #viewer-container { background: #f0f0f0; padding: 1rem; border-radius: 4px; min-height: 120px; }
    #viewer-container .pdf-page { display: block; margin: 0 auto 1rem; box-shadow: 0 2px 8px rgba(0,0,0,0.15); background: white; }
    #status { color: #666; font-size: 0.9rem; margin-top: 0.5rem; }
    .hidden { display: none; }
  </style>
</head>
<body>
  <h1>pdfrs WASM Demo</h1>
  <p>Enter Markdown below, then generate and preview the PDF in your browser:</p>
  <textarea id="input"># Hello from WASM

This PDF was generated entirely in your browser using **pdfrs**.

## Features

- No server required
- Pure Rust compiled to WebAssembly
- Canvas-based PDF preview
- *Italic* and **bold** text
- Unicode: α β γ δ ε 中文

```rust
fn main() {
    println!("Hello, WebAssembly!");
}
```
</textarea>
  <div class="controls">
    <button id="generate">Generate &amp; Preview</button>
    <button id="download" class="hidden">Download PDF</button>
  </div>

  <div class="viewer-section">
    <h2>PDF Preview</h2>
    <div id="viewer-container">
      <p id="placeholder">Click <strong>Generate &amp; Preview</strong> to render the PDF here.</p>
    </div>
    <p id="status"></p>
  </div>

  <script type="module">
    import init, { render_markdown_to_pdf } from './pkg/pdfrs.js';
    import { renderPdfToContainer } from './viewer.js';

    await init();

    let lastPdfBytes = null;
    let downloadUrl = null;

    const generateBtn = document.getElementById('generate');
    const downloadBtn = document.getElementById('download');
    const container = document.getElementById('viewer-container');
    const placeholder = document.getElementById('placeholder');
    const status = document.getElementById('status');

    function setStatus(msg) {
      status.textContent = msg;
    }

    generateBtn.addEventListener('click', async () => {
      const md = document.getElementById('input').value;

      generateBtn.disabled = true;
      setStatus('Generating PDF…');

      try {
        lastPdfBytes = render_markdown_to_pdf(md);

        if (downloadUrl) {
          URL.revokeObjectURL(downloadUrl);
        }
        downloadUrl = URL.createObjectURL(new Blob([lastPdfBytes], { type: 'application/pdf' }));
        downloadBtn.classList.remove('hidden');

        placeholder.classList.add('hidden');
        setStatus('Rendering preview…');

        const { pageCount } = await renderPdfToContainer(lastPdfBytes, container, { scale: 1.25 });
        setStatus(`Preview ready — ${pageCount} page${pageCount === 1 ? '' : 's'}.`);
      } catch (err) {
        setStatus(`Error: ${err.message || err}`);
        console.error(err);
      } finally {
        generateBtn.disabled = false;
      }
    });

    downloadBtn.addEventListener('click', () => {
      if (!downloadUrl) return;
      const a = document.createElement('a');
      a.href = downloadUrl;
      a.download = 'output.pdf';
      a.click();
    });
  </script>
</body>
</html>