sgcSign XAdES / PAdES / CAdES for Delphi

Digital signatures are no longer a niche requirement. From VeriFactu and TicketBAI in Spain to FatturaPA in Italy, KSeF in Poland, Factur-X in France/Germany and myDATA in Greece, European governments now mandate cryptographically signed electronic invoices and tax documents. Building a compliant signing pipeline from scratch means wrestling with XML canonicalization, ETSI standards, timestamping, OCSP, certificate chains, HSM integration and a different set of rules for every country.

Today we are releasing sgcSign, a brand-new product from eSeGeCe that turns all of this into three lines of Pascal. sgcSign is a production-ready digital signature library for Delphi 7 through Delphi 13 and C++Builder, implementing XAdES, PAdES, CAdES and XMLDSig, and shipping with pre-configured profiles for 12 European tax authorities.

To celebrate the launch, every sgcSign license is 50% off during the launch period — see the pricing section below, or download the free trial and try it today.

What is sgcSign?

sgcSign is a native VCL/FMX component library that adds a complete digital signature and verification pipeline to any Delphi or C++Builder application. A single, consistent API lets your code:

Under the hood, sgcSign handles the hard parts — XML canonicalization (C14N 1.0 and Exclusive C14N), incremental PDF updates, CMS/PKCS#7 structures, RFC 3161 timestamping, and every edge case of the ETSI EN 319 132 and EN 319 142 standards — so your code stays short and your output stays valid.

How sgcSign Works

The signing model is deliberately simple. You connect a key provider (where the private key lives), pick a profile (which standard and country rules to apply), and call Sign.

Signing a VeriFactu invoice in Delphi looks like this:

var
  vSign: TsgcSign;
begin
  vSign := TsgcSign.Create(nil);
  vSign.Certificate.LoadFromPFX('cert.pfx', 'password');
  vSign.Profile := spVeriFactu;
  vSign.SignFile('invoice.xml', 'signed.xml');

  // Verify the signed document
  if vSign.VerifyFile('signed.xml') then
    ShowMessage('Signature is valid');
end;

Drop the TsgcSign component on your form, configure a couple of properties at design-time, and your VCL or FMX application is ready to sign.

Supported IDEs and Platforms

Key Features

Built-in Compliance for 12 European Tax Authorities

Each profile encapsulates the exact algorithm, canonicalization, namespace and signed-property requirements defined by the corresponding authority. Switch country by changing a single line of code.

Why Choose sgcSign

Launch Offer: 50% Off Every License

To celebrate the public release, every sgcSign license is 50% off the regular price. The discount applies to all three tiers and includes one year of updates plus full source code.

Every plan includes XAdES, PAdES and CAdES signing, signature verification, full source code and one year of updates. No per-signature fees, no runtime royalties.

Order online at esegece.com/products/sgcsign/sgcsign-order.

Try It Today

Download the free trial, run one of the built-in demos for your country (VeriFactu, TicketBAI, Facturae, FatturaPA, KSeF, Factur-X, e-Factura, NAV Online, Fiskalizacija, myDATA, Peppol, SAF-T PT), and see a fully valid signed document produced from your Delphi or C++Builder IDE in under five minutes.

Questions, quotes or custom-profile requests? Write to This email address is being protected from spambots. You need JavaScript enabled to view it. and you will get a reply from the people who wrote the code.