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Stirling PDF vs PDFVertex

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 PDFVertex
DetailStirling PDF logo Stirling PDFPDFVertex logo PDFVertex
What it doesA free, private PDF editor you can run on any infrastructure. Free online PDF tools for converting, merging, splitting, compressing and editing documents
StageNot given Not given
FoundedNot given Not given
Based inUS Not given
Pricing modelFreemium Freemium
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 Free plan with unlimited browser operations and up to 15MB files; Basic ($6.99/month) with 30 API operations/month and 50MB files; Pro ($12.99/month) with 150 API operations/month, OCR and 100MB files; Business ($29.99/month) with 500 API operations/month, digital signatures, team accounts and 500MB
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
  • Merge PDFs
  • Split PDFs
  • Compress PDFs
  • Convert PDF to Word
  • Convert images to PDF
  • Convert PDF to images
  • OCR text extraction
  • Digital signatures
  • Password protection
  • Watermarking
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
  • Browser-based processing keeps files on your device
  • No registration or account required
  • Complete privacy with 100% client-side processing
  • Fast results with no upload wait
Community votes00
DR (Domain Rating by Ahrefs)62 −1 (down) since last check1 no change since last check
Trust Flow (Majestic)151
Citation Flow (Majestic)4021
Referring domains (Majestic)87211

5 details filled in for both companies.

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