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Stirling PDF vs PDFluent

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Stirling PDF compared with PDFluent
DetailStirling PDF logo Stirling PDFPDFluent logo PDFluent
What it doesA free, private PDF editor you can run on any infrastructure. Free PDF editor that runs locally without cloud or account
StageNot given Startup
FoundedNot given 2026
Based inUS NL
Pricing modelFreemium Free
PricingFree: $0/month includes 60+ PDF tools, web/desktop/self-hosted access, open-source editor, and 1,000 monthly credits. Team: $99/month for 100 users, includes everything in Free plus single sign-on, team workspace, and central control. Enterprise: Custom pricing for regulated and air-gapped deploymen Editor: Free for everyone, including commercial use. SDK: Free under AGPLv3, or €999 for a commercial licence.
Key features
  • PDF reader with lightning-fast reading
  • 60+ PDF editing tools
  • OCR to read scanned pages
  • Classification and tagging
  • Signature validation
  • PDF redaction
  • Compression
  • Routing to multiple destinations
  • API for programmatic access
  • Connectors for tool integration
  • Full-text search with command palette
  • Edit text size and color
  • True content redaction
  • PAdES digital signatures
  • Fill standard PDF forms and XFA forms
  • Merge and split PDF pages
  • Extract text with bounding boxes for AI
  • Markdown and JSON output
What makes it different
  • Completely free editor forever with no per-seat licensing
  • Run on any infrastructure with files staying yours
  • Process thousands of PDFs with AI-powered automation
  • Every action logged and recorded for compliance
  • Supports XFA forms that most other PDF libraries refuse to open or process
  • Highest performance on PDF text extraction benchmarks
Community votes00
DR (Domain Rating by Ahrefs)63 +1 (up) since last check10 no change since last check
Trust Flow (Majestic)152
Citation Flow (Majestic)4029
Referring domains (Majestic)87237

6 details filled in for both companies.

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