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pdfzus vs Stirling PDF

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

pdfzus compared with Stirling PDF
Detailpdfzus logo pdfzusStirling PDF logo Stirling PDF
What it doesMerge PDFs locally and securely in your browser without uploads or registration A free, private PDF editor you can run on any infrastructure.
StageNot given Not given
FoundedNot given Not given
Based inDE US
Pricing modelFree Freemium
PricingCompletely free with no limits, no subscriptions, no ads, no watermarks Free: $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
Key features
  • Drag and drop file sorting
  • Local browser-based merging with WebAssembly
  • No watermarks on merged PDFs
  • Combine PDFs and image files together
  • Compress merged PDF to target file size
  • No registration required
  • No tracking cookies
  • Dark mode support
  • Mobile-optimized responsive design
  • Offline capable after initial load
  • 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
What makes it different
  • DSGVO-compliant and safe for sensitive documents like applications and contracts
  • Completely free forever with no limits, ads, or hidden fees
  • Servers located in Germany with TLS encryption
  • Open source code publicly available on multiple platforms for transparency
  • 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
Community votes00
DR (Domain Rating by Ahrefs)39 no change since last check61 no change since last check
Trust Flow (Majestic)1315
Citation Flow (Majestic)2940
Referring domains (Majestic)233872

6 details filled in for both companies.

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