n8n-nodes-sign-pdf

Add signature images or typed text signatures to PDF documents — with precise positioning and date stamps.

This is an n8n community node powered by PDF API Hub.

🚀 Install

1. Go to Settings → Community Nodes in n8n
2. Enter n8n-nodes-sign-pdf
3. Click Install

🔑 Setup

Sign up at pdfapihub.com → copy your API key → add to n8n credentials.

✨ Features

Signature Types

• Image (URL) — provide a URL to your signature image (PNG/JPG/WebP)
• Image (Base64) — provide a base64-encoded signature
• Typed Text — render typed text as a signature with custom color and font size

Placement

| Parameter | Description | |-----------|-------------| | Page | Specific page number or 0 for last page (most common for contracts) | | Sign All Pages | Stamp signature on every page | | Position | Bottom Right (default), Bottom Left/Center, Top positions, Center, or Custom X/Y | | Date Stamp | Add UTC date below the signature text |

Output

| Parameter | Description | |-----------|-------------| | Output Format | Binary File (default), URL, or Base64 | | Opacity | Signature transparency (1.0 = fully opaque) | | Width / Height | Custom signature dimensions in PDF points |

🖊️ Draw your signature and get a URL →

💡 Use Cases

• Contract signing — automate signature placement on agreements
• Approval workflows — stamp manager signatures on approved documents
• Certificate signing — add official signatures to certificates
• Batch signing — sign hundreds of documents in one workflow

License

MIT