Pick your platform, copy the package command, and ship your first integration.
using GroupDocs.Signature;
using var signature = new Signature("document.pdf");
signature.Sign("signed.pdf", new TextSignOptions());
GroupDocs.Signature in production — fast, flexible, and source-agnostic.
Digital, barcode, QR-code, text, image, and stamp signatures.
Validate existing signatures and search documents for them.
Embed signatures in document metadata for tamper detection.
PDF, Word, Excel, PowerPoint, and image documents.
A representative slice of the formats GroupDocs.Signature works with.
Run GroupDocs.Signature on your own files in the free, ads-free Signature web app — no install required. Files are deleted after 24 hours.
