Description
n8n-nodes-pdf-api-hub
> The most powerful PDF toolkit for n8n — 30+ operations, one node.
Turn any webpage into a PDF, sign documents, extract tables to Excel, OCR scanned pages, merge/split/compress PDFs, and much more — all inside your n8n workflows.
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🚀 Install
1. In n8n, go to Settings → Community Nodes
2. Click Install a community node
3. Enter: n8n-nodes-pdf-api-hub
4. Click Install
> Official guide: n8n Community Nodes Installation
🔑 Get your API key
1. Go to pdfapihub.com and sign up (free tier available)
2. Copy your API key from the dashboard
> 📖 Full API docs: pdfapihub.com/docs
🔐 Set up credentials in n8n
1. In n8n, go to Credentials → New
2. Search for PDF API Hub API
3. Paste your API key → Save
That’s it! The node handles everything automatically.
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✨ What you can do
| # | Resource | Operations | What it does |
|—|———-|———–|————-|
| 1 | HTML / URL to PDF | HTML to PDF, URL to PDF | Render HTML or capture any webpage as a pixel-perfect PDF with custom paper size, margins, fonts, and viewport |
| 2 | Sign PDF | Sign PDF, Add Watermark | Stamp a signature image or overlay text/logo watermarks on every page |
| 3 | Screenshot to Image | URL to Image, HTML to Image | Capture full-page screenshots or render HTML to PNG with retina support |
| 4 | OCR | PDF OCR, Image OCR | Extract text from scanned documents and photos — supports English, Portuguese, Russian, and custom languages |
| 5 | Extract Text & Tables | Parse PDF | Pull text, tables, or structured layout data from any PDF |
| 6 | PDF to Excel & More | PDF → XLSX, CSV, DOCX, TXT, HTML, PPTX | Convert PDFs into editable spreadsheets, Word docs, presentations, and more |
| 7 | Merge / Split | Merge PDF, Split PDF | Combine multiple PDFs or split one into pages, ranges, or equal chunks |
| 8 | Compress PDF | Compress PDF | Shrink file size with 4 compression levels (low → max) |
| 9 | Protect / Unlock | Lock PDF, Unlock PDF | Add AES-256 encryption with granular permissions, or remove password protection |
| 10 | Scrape Website | Fetch HTML | Get fully-rendered HTML from any URL using a headless browser — perfect for SPAs |
| 11 | Images to PDF | PNG/JPG/WebP to PDF | Combine images into a PDF with page size, orientation, and fit mode options |
| 12 | PDF to Image | PDF to PNG/JPG/WebP | Render PDF pages as images with DPI, resize, and background color control |
| 13 | Compare Documents | Similarity Check | Compare two PDFs or images for visual similarity |
| 14 | File Management | Upload, List, Delete | Manage your cloud-stored files |
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📖 Operations in detail
1. HTML / URL to PDF
Convert HTML or capture any webpage as a PDF.
| Parameter | Description |
|———–|————-|
| HTML Content | Your HTML template (supports {{placeholders}}) |
| CSS Content | Optional CSS injected before rendering |
| URL | Any public webpage URL |
| Paper Size | A0–A6, Letter, Legal, Tabloid, Ledger |
| Orientation | Portrait / Landscape |
| Margins | None, Small, Medium, Large, or Custom (px/mm/cm/in) |
| Viewport Size | Standard, Laptop, Desktop, Mobile, Tablet, or Custom |
| Output Format | URL (hosted 30 days), Base64, or Binary File |
| Load Google Fonts | Pipe-separated font names (e.g. Roboto|Inter) |
| Dynamic Params | Key/value pairs for {{placeholder}} substitution |
| Cookie Accept Text | Auto-click cookie consent popups (URL mode) |
| Wait Until | Fully Loaded, DOM Ready, Network Quiet, or First Response |
| Advanced | Print background, header/footer, CSS page size, max pages, navigation timeout |
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2. Sign PDF & Watermark
Sign PDF — stamp a signature image onto your documents.
| Parameter | Description |
|———–|————-|
| PDF Input | URL, Base64, or Binary File |
| Signature | Image URL or Base64 (PNG/JPG/WebP, transparent PNGs supported) |
| Page | Specific page number, or sign all pages |
| Position | Bottom Right, Bottom Left, Center, Top Right, etc. |
| Advanced | Custom X/Y coordinates, width/height, opacity |
Add Watermark — overlay text or a logo across every page.
| Parameter | Description |
|———–|————-|
| Watermark Text | Any text (default: CONFIDENTIAL) |
| Opacity | 0 (invisible) to 1 (fully opaque) |
| Position | Center, Top/Bottom Left/Right/Center |
| Mode | Single placement or Tiled (repeats diagonally) |
| Advanced | Text color, font size, image watermark URL |
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3. Screenshot Website to Image
Capture webpages or render HTML as PNG images.
| Parameter | Description |
|———–|————-|
| URL / HTML | Webpage URL or HTML content |
| Output Format | URL, Base64, Both (URL + Base64), or Binary File |
| Image Size | Width × Height in pixels (HTML mode) |
| Viewport | Desktop, Laptop, Mobile, Tablet, or Custom |
| Full Page | Capture the entire scrollable page (URL mode) |
| Cookie Accept | Auto-dismiss consent popups |
| Advanced | Device scale factor (2× for retina), quality (30–100) |
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4. OCR — Read Scanned PDFs & Images
Extract text from scanned documents using Tesseract OCR.
| Parameter | Description |
|———–|————-|
| Input | URL or Binary File (PDF or Image) |
| Language | English, Portuguese, Russian, or custom code (e.g. eng+hin) |
| Pages | All, single page, range (1-3), or mixed (1,3,5-8) |
| Detail Level | Text Only, or Words + Bounding Boxes |
| Response Format | JSON (structured) or Plain Text |
| Advanced (PDF) | DPI (72–400), character whitelist, PSM, OEM |
| Advanced (Image) | Grayscale, sharpen, binarization threshold, resize scale |
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5. Extract PDF Text & Tables
Pull structured data from any PDF — no OCR needed for digital PDFs.
| Parameter | Description |
|———–|————-|
| Input | URL or Binary File |
| Parse Mode | Text Only, Layout (with bounding boxes), Tables, or Full |
| Pages | All or specific page selection |
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6. PDF to Excel / CSV / Word / PowerPoint
Convert PDFs into editable formats.
| Operation | Output | Description |
|———–|——–|————-|
| PDF to Excel (XLSX) | .xlsx | Tables extracted into spreadsheet — one sheet per page |
| PDF to CSV | .csv | Table data in CSV format |
| PDF to Word (DOCX) | .docx | Editable Word document with optional page selection |
| PDF to Text | .txt | Plain extracted text |
| PDF to HTML | .html | Styled HTML document |
| PDF to PowerPoint | .pptx | Each page becomes a slide |
| Document to PDF | .pdf | Convert DOCX, PPTX, XLSX, CSV, TXT, ODT → PDF |
All operations support: URL / Binary File input, URL / Base64 / Binary output, optional page selection, and custom output filename.
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7. Merge / Split PDF
Merge — combine multiple PDFs into one.
| Parameter | Description |
|———–|————-|
| Input | PDF URLs (Google Drive links supported) or Binary Files |
| Output Format | URL, Base64, or Binary File |
| Output Filename | Custom name for the merged file |
| Advanced | PDF metadata (title, author, subject, keywords) |
Split — break a PDF into parts.
| Parameter | Description |
|———–|————-|
| Split Mode | Each Page, Specific Pages (1-3,5,8-), or Equal Chunks (2–100) |
| Output | URL (individual + ZIP), Base64 (ZIP), or Binary (ZIP) |
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8. Compress PDF
Reduce file size with configurable compression.
| Parameter | Description |
|———–|————-|
| Compression Level | Low, Medium, High (default), or Max |
| Output Format | URL, Base64, or Binary File |
> 💡 URL/Base64 responses include compression statistics — original size, compressed size, ratio, and bytes saved.
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9. Protect / Unlock PDF
Lock — add password protection with enterprise-grade encryption.
| Parameter | Description |
|———–|————-|
| Password | Required to open the PDF |
| Advanced | Owner password, encryption (AES-256/128, RC4), 8 granular permissions (print, copy, modify, annotate, forms, extract, assemble, high-res print) |
Unlock — remove password protection using multiple decryption engines.
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10. Scrape Website HTML
Fetch fully-rendered HTML from any URL using a headless browser.
| Parameter | Description |
|———–|————-|
| URL | Any public webpage |
| Wait Until | Fully Loaded, DOM Ready, Network Quiet, or First Response |
| Wait for Element | CSS selector to wait for (great for SPAs) |
| Extra Delay | Additional milliseconds after page load |
| Viewport | Desktop, Laptop, Mobile, Tablet, or Custom |
| Advanced | Navigation timeout, custom User-Agent, extra HTTP headers |
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11–12. Images ↔ PDF
Images to PDF — combine images into a document.
| Parameter | Description |
|———–|————-|
| Page Size | Original (match image), A3, A4, A5, Letter, Legal, Tabloid |
| Fit Mode | Fit (preserve aspect), Fill (may crop), Stretch, or Original |
| Orientation | Portrait / Landscape |
| Margin | 0–200 points padding |
PDF to Image — render pages as PNG, JPG, or WebP.
| Parameter | Description |
|———–|————-|
| DPI | 72–300 (higher = sharper) |
| Quality | 1–100 (JPG/WebP) |
| Advanced | Resize width/height, background color for transparent PNGs |
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13. Compare Documents
Check visual similarity between two PDFs or images.
| Parameter | Description |
|———–|————-|
| Input | Two URLs, two Base64 strings, or two Binary Files |
| Method | Auto (default), Feature Match, SSIM, or PHash |
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14. File Management
Manage files in your cloud storage.
| Operation | Description |
|———–|————-|
| Upload File | Upload any file — returns hosted URL (auto-deleted after 30 days) |
| List Files | List all your uploaded files (newest first, limit 1–500) |
| Delete File | Delete a file by URL (ownership enforced) |
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🔌 How output formats work
Most operations let you choose how to receive the result:
| Format | Best for | What you get |
|——–|———|————-|
| URL (Hosted Link) | Sharing, webhooks, storing | A downloadable URL — file hosted for 30 days |
| Base64 (Inline Data) | Embedding in emails, chaining nodes | The file as a base64 string inside JSON |
| Binary File | Piping to Google Drive, S3, Email, etc. | Raw binary data you can pass to any n8n file node |
> 💡 Tip: Choose Binary File when you want to pass the output directly to nodes like Write Binary File, Google Drive, AWS S3, or Send Email.
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💬 Support & resources
- 🔑 Get API key: pdfapihub.com
- 📖 API documentation: pdfapihub.com/docs
- 🐛 Report a bug: GitHub Issues
- 💬 Questions: support@pdfapihub.com
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📄 License
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Made with ❤️ by PDF API Hub
