PAdES Studio vs PDF Smart Kit

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 PDF Smart Kit
Detail	PAdES Studio	PDF Smart Kit
What it does	Digital PDF signatures for macOS	Browser-based PDF tools that process files locally without uploading or requiring an account
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	GB
Pricing model	Freemium	Freemium
Pricing	Create your first 5 signatures free, then unlock unlimited signing with a one-time purchase	Free tools available. Ad-free plans: Basic (1 browser slot), Premium (2-20 browser slots), Business (custom arrangements). Prices in GBP with monthly or annual billing through Stripe. Annual subscriptions offer 40% discount.
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 multiple PDFs into one document Compress PDF file size for email and storage Split PDF by page range or extract selected pages Convert PDF to Word with editable text Convert images (JPG, PNG) to PDF Unlock password-protected PDFs OCR to make scans searchable Add visible signatures and watermarks Redact sensitive content permanently Process up to 30 files and 250 MB total
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	No file upload to servers—all processing happens locally in your browser No account registration required to use any tool 30 tools with consistent workflow in one place Works on mobile browsers and all devices Download results immediately without storage or cloud account
Community votes	0	0
DR (Domain Rating by Ahrefs)	37 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	7	0
Citation Flow (Majestic)	16	0
Referring domains (Majestic)	5	0

5 details filled in for both companies.

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