Enforce Pro plan limit of 5,000 PDFs/month

public/index.html

@@ -17,7 +17,7 @@
 <link rel="preconnect" href="https://fonts.googleapis.com">
 <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
 <script type="application/ld+json">
-{"@context":"https://schema.org","@type":"SoftwareApplication","name":"DocFast","url":"https://docfast.dev","applicationCategory":"DeveloperApplication","operatingSystem":"Web","description":"Convert HTML and Markdown to beautiful PDFs with a simple API call. Fast, reliable, developer-friendly.","offers":[{"@type":"Offer","price":"0","priceCurrency":"EUR","name":"Free","description":"100 PDFs/month"},{"@type":"Offer","price":"9","priceCurrency":"EUR","name":"Pro","description":"Unlimited PDF conversions","billingIncrement":"P1M"}]}
+{"@context":"https://schema.org","@type":"SoftwareApplication","name":"DocFast","url":"https://docfast.dev","applicationCategory":"DeveloperApplication","operatingSystem":"Web","description":"Convert HTML and Markdown to beautiful PDFs with a simple API call. Fast, reliable, developer-friendly.","offers":[{"@type":"Offer","price":"0","priceCurrency":"EUR","name":"Free","description":"100 PDFs/month"},{"@type":"Offer","price":"9","priceCurrency":"EUR","name":"Pro","description":"5,000 PDFs / month","billingIncrement":"P1M"}]}
 </script>
 <link rel="icon" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>⚡</text></svg>">
 <style>
@@ -404,7 +404,7 @@ html, body {
         <div class="price-amount">€9<span> /mo</span></div>
         <div class="price-desc">For production apps and businesses</div>
         <ul class="price-features">
-          <li>Unlimited PDF conversions</li>
+          <li>5,000 PDFs / month</li>
           <li>All conversion endpoints</li>
           <li>All templates included</li>
           <li>Priority support</li>

src/middleware/usage.ts

@@ -3,6 +3,7 @@ import logger from "../services/logger.js";
 import pool from "../services/db.js";
 
 const FREE_TIER_LIMIT = 100;
+const PRO_TIER_LIMIT = 2500;
 
 // In-memory cache, periodically synced to PostgreSQL
 let usage = new Map<string, { count: number; monthKey: string }>();
@@ -44,6 +45,15 @@ export function usageMiddleware(req: any, res: any, next: any): void {
   const monthKey = getMonthKey();
 
   if (isProKey(key)) {
+    const record = usage.get(key);
+    if (record && record.monthKey === monthKey && record.count >= PRO_TIER_LIMIT) {
+      res.status(429).json({
+        error: "Pro tier limit reached (2,500/month). Contact support for higher limits.",
+        limit: PRO_TIER_LIMIT,
+        used: record.count,
+      });
+      return;
+    }
     trackUsage(key, monthKey);
     next();
     return;
@@ -55,7 +65,7 @@ export function usageMiddleware(req: any, res: any, next: any): void {
       error: "Free tier limit reached",
       limit: FREE_TIER_LIMIT,
       used: record.count,
-      upgrade: "Upgrade to Pro for unlimited conversions: https://docfast.dev/pricing",
+      upgrade: "Upgrade to Pro for 2,500 PDFs/month: https://docfast.dev/pricing",
     });
     return;
   }

src/routes/billing.ts

@@ -76,7 +76,7 @@ a { color: #4f9; }
 <p>Your API key:</p>
 <div class="key" style="position:relative">${escapeHtml(keyInfo.key)}<button onclick="navigator.clipboard.writeText('${escapeHtml(keyInfo.key)}');this.textContent='Copied!';setTimeout(()=>this.textContent='Copy',1500)" style="position:absolute;top:8px;right:8px;background:#4f9;color:#0a0a0a;border:none;border-radius:4px;padding:4px 12px;cursor:pointer;font-size:0.8rem;font-family:system-ui">Copy</button></div>
 <p><strong>Save this key!</strong> It won't be shown again.</p>
-<p>10,000 PDFs/month • All endpoints • Priority support</p>
+<p>5,000 PDFs/month • All endpoints • Priority support</p>
 <p><a href="/docs">View API docs →</a></p>
 </div></body></html>`);
   } catch (err: any) {
@@ -184,7 +184,7 @@ async function getOrCreateProPrice(): Promise<string> {
   } else {
     const product = await getStripe().products.create({
       name: "DocFast Pro",
-      description: "Unlimited PDF conversions via API. HTML, Markdown, and URL to PDF.",
+      description: "5,000 PDFs / month via API. HTML, Markdown, and URL to PDF.",
     });
     productId = product.id;
   }

templates/partials/head.html

@@ -0,0 +1,6 @@
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<link rel="icon" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>⚡</text></svg>">
+<link rel="preconnect" href="https://fonts.googleapis.com">
+<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap" rel="stylesheet">

templates/partials/nav.html

@@ -0,0 +1,10 @@
+<nav aria-label="Main navigation">
+  <div class="container">
+    <a href="/" class="logo">⚡ Doc<span>Fast</span></a>
+    <div class="nav-links">
+      <a href="/#features">Features</a>
+      <a href="/#pricing">Pricing</a>
+      <a href="/docs">Docs</a>
+    </div>
+  </div>
+</nav>