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PAdES Studio vs PDFkind

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 PDFkind
Detail PAdES StudioPDFkind logo PDFkind
What it doesDigital PDF signatures for macOS Free online PDF editor with no signup, watermark or paywall
StageNot given Not given
FoundedNot given Not given
Based inNot given MA
Pricing modelFreemium Free
PricingCreate your first 5 signatures free, then unlock unlimited signing with a one-time purchase Free: all 128 tools, no account, no watermark, no limits
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
  • Edit existing text in place by double-clicking to keep original font and formatting
  • Add text in over 20 fonts including Arabic fonts with right-to-left support
  • True redaction that permanently removes text and images from the file
  • Create fillable form fields including text fields, checkboxes, radio buttons and signature fields
  • Sign PDFs with drawn, typed or uploaded signatures
  • Add images, shapes, highlights and annotations
  • Merge, split and reorganize PDF pages
  • Convert between PDFs and other formats including Word, Excel, JPG and PNG
  • All processing happens in your browser with files never uploaded to servers
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
  • Completely free with no signup, watermark, trial or paid plan
  • Edit existing PDF text in place instead of overlaying boxes, keeping original formatting
  • Files are processed locally in your browser and never uploaded to servers
  • 128 tools covering editing, organization, conversion and security
  • Support for 16 languages including right-to-left scripts like Arabic
Community votes00
DR (Domain Rating by Ahrefs)37 no change since last check5 no change since last check
Trust Flow (Majestic)74
Citation Flow (Majestic)1621
Referring domains (Majestic)519

5 details filled in for both companies.

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