PAdES Studio vs PDFLines

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 PDFLines
Detail	PAdES Studio	PDFLines
What it does	Digital PDF signatures for macOS	Not given
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Free
Pricing	Create your first 5 signatures free, then unlock unlimited signing with a one-time purchase	Not given
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	Not given
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 signup or account required Small images processed in browser for privacy Scanned PDFs convert to editable Word documents Files deleted automatically after processing
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	12
Referring domains (Majestic)	5	3

2 details filled in for both companies.