PDF Sign — Legally Binding Electronic Signatures Without Printing or Scanning

The print-sign-scan-email workflow for document signing adds two unnecessary physical steps and loses quality at each one. A typed or drawn electronic signature applied directly to a PDF produces a cleaner result faster and eliminates the need for a printer, a pen, a scanner, and the 15-30 minutes each round of signing requires. Electronic signatures applied to PDFs are legally recognized in the United States under the ESIGN Act of 2000, in the EU under eIDAS, and in most jurisdictions globally for standard commercial and personal documents — contracts, consent forms, acknowledgments, and agreements.

Signature placement determines whether a signed PDF is procedurally acceptable. Contracts require signatures on the signature line at the bottom of the final page — not floating in a margin or placed over another party's text. Initials on each page are required by many real estate and legal agreements to acknowledge each page was reviewed. Multi-party documents need signature fields for each signing party in the correct locations. The PDF sign tool lets you place signature, initials, date, and text fields at precise locations on any page so the signed output meets the procedural requirements of the document's use context.

Certificate-based digital signatures provide a higher level of authenticity assurance than simple electronic signatures. A certificate-based signature embeds a cryptographic hash of the document at signing time — any modification after signing invalidates the certificate, producing a visible warning in PDF readers. This tamper-evidence is required for certain regulatory filings, court submissions, and financial documents where the integrity of the signed record must be verifiable years after signing. The PDF sign tool supports both simple electronic signatures for everyday use and certificate-based digital signatures for compliance-grade document authentication.