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PAdES Studio vs PDFVertex

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

PAdES Studio compared with PDFVertex
Detail PAdES StudioPDFVertex logo PDFVertex
What it doesDigital PDF signatures for macOS Free online PDF tools for converting, merging, splitting, compressing and editing documents
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingCreate your first 5 signatures free, then unlock unlimited signing with a one-time purchase 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
  • Keychain signing with support for CryptoTokenKit smart cards
  • Visible signature with optional image, signer name, and signing time
  • RFC 3161 timestamping and long-term validation (LTV)
  • Signature inspection with status, certificate chains, and DSS material review
  • Multiple signatures as independent document revisions
  • Local document processing without server uploads
  • Support for PAdES-B-B, PAdES-B-T, PAdES-B-LT, and PAdES-B-LTA profiles
  • 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
  • Real digital signatures that preserve original PDF bytes, not just image stamps
  • Incremental PDF updates preserve existing signatures as independently verifiable
  • All document processing stays local without server uploads
  • Works with macOS Keychain and supported smart cards without PKCS#11 limitation
  • Verification always unlimited while signing has free tier option
  • 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)37 no change since last check1 no change since last check
Trust Flow (Majestic)71
Citation Flow (Majestic)1621
Referring domains (Majestic)511

5 details filled in for both companies.

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