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Version: 2.0 (Beta)

PDF Tools

Stirling-PDF provides 60+ powerful PDF tools organized by category. Find the tool you need below.


The tools you'll use most often:

  • Multi-Tool - Upload once, chain unlimited operations
  • Read & Annotate - PDF viewer with annotations
  • Merge - Combine multiple PDFs
  • Convert - 50+ format conversions
  • Compress - Reduce file size
  • OCR - Make scanned PDFs searchable
  • Compare - See differences between PDFs
  • Redact - Remove sensitive content

View Recommended Tools Guide →


📚 Tools by Category

🔐 Security

Password protection, signatures, permissions, watermarks

  • Add/Remove Password
  • Change Permissions
  • Sign - Handwritten signatures
  • Certificate Sign - Digital signatures
  • Validate Signature
  • Add Watermark
  • Sanitize PDF
  • Auto-Redact

📑 Page Operations

Split, merge, rotate, extract, reorganize pages

  • Split PDF
  • Merge PDFs
  • Rotate Pages
  • Extract Pages
  • Reorganize Pages
  • Add Page Numbers
  • Remove Pages/Blank Pages

Detailed Guide: Redaction


🔄 Convert

Convert to/from PDF - 50+ file formats supported

To PDF: Word, Excel, PowerPoint, Images, HTML, Markdown, Email, and more

From PDF: Word, PowerPoint, Text, Images, CSV, HTML, XML, PDF/A, and more


🎨 Content & Editing

Add, extract, and modify PDF content

  • Add/Extract Images
  • Add Stamp
  • Edit Metadata
  • Remove Annotations
  • Replace Colors
  • Get PDF Info

⚡ Advanced Features

🎨 Super Tools

🔧 Advanced Tools

  • Add Background/Stamp
  • Booklet Imposition
  • Overlay PDFs
  • Multi-Page Layout
  • Scale Pages
  • Show JavaScript
  • PDF Info (JSON)

🔍 Quick Tool Finder

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