Pick your platform, copy the package command, and ship your first integration.
using GroupDocs.Signature;
using GroupDocs.Signature.Options;
using var signature = new Signature("document.pdf");
signature.Sign("signed.pdf", new TextSignOptions("John Smith"));
GroupDocs.Signature in production — fast, flexible, and source-agnostic.
Digital, barcode, QR-code, text, image, stamp, form-field, and metadata signatures.
Validate existing signatures, search documents for them, and update or remove them.
Embed signatures in document metadata for tamper detection.
PDF, Word, Excel, PowerPoint, OpenDocument, 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.