dSign

Service active

Sign documents with the certificate
you already have

dSign lets you sign PDF, Word and Excel documents directly in your browser — using your existing qualified certificate, a cloud signing provider, or your organization's e-seal. No new certificate, no re-uploading, and your document never leaves the signing process.

Download for Windows Sign in to portal

Browser extension for Chrome and Edge · Windows companion app for smart cards and USB tokens

One platform, every signing method

In practice a company never has just one kind of signer. The director has a USB token, accounting works from a cloud certificate, back office only needs a company seal, and external partners have nothing at all. dSign supports all of them side by side — nobody has to change how they already work.

🔑 Smart card & USB token

Qualified signature with your own PKCS#11 hardware certificate. Vendor-independent — common middleware is detected automatically, others can be configured manually.

☁️ Cloud certificates (CSC)

Qualified remote signing through Cloud Signature Consortium (CSC) providers — sign from any device, no hardware required.

🏢 Click to Sign

Signing with a shared organization certificate — built for internal workflows and high-volume document runs.

🛡️ Organization e-seal

Secures the content and origin of a document with your organization's authority — for outgoing documentation and invoices.

✍️ Specimen stamp

A visual-only signature stamp for drafts and internal documents. No certificate involved — and no cryptographic signature, by design.

Sign it however it starts

A document doesn't wait for you to open the right app. dSign signs it wherever it already is — on a page, inside your document system, or fresh off the printer.

🌐 Any page in your browser

Click Sign on any PDF you're viewing — no download, no separate app.

🔗 Your document system

Sign in-task inside darhiv or any integrated DMS/ERP — the signed file returns automatically to where it came from.

🖨️ Any file on your computer

Print-to-Sign: send a document from Word, Excel, or any Windows application straight to signing via a virtual printer. No PDF conversion step of your own.

Built for compliance, not just convenience

Everything needed to make an electronic signature hold up over time — and to prove it later.

PAdES-B / T / LTA — including long-term archival validation, so signatures stay verifiable after the certificate expires.
eIDAS-aligned — advanced and qualified electronic signatures under Regulation (EU) 910/2014.
Tamper-evident audit trail — every signature recorded in a SHA-256 hash chain with signer identity, timestamp and document hash.
No document retention — document content is processed transiently and never written to disk or a database during signing.
Any PKCS#11 token or smart card — vendor-independent by design, with no hardcoded device list. Common middleware is detected automatically; any other device simply needs its library path set once.
Your own timestamp authority — organizations can use their own TSA account instead of a shared one.
Bulk signing — sign every document in a folder in a single operation.
Custom signature appearance — image, text and placement configurable per user.
Central administration — user and organization management, signing policy and usage reporting.

dSign Xchange — signatures from outside your company

Contracts rarely stay inside one organization. Xchange sends a document to an external recipient for signature and brings it back signed — without them needing an account, a licence, or any prior setup.

1 Send Pick the document and the recipient's e-mail address, optionally with a signing deadline.
2 They sign The recipient verifies their identity by e-mail code, then signs — with their own certificate, or with an e-seal if they have none.
3 You get it back The signed document returns to your inbox. Delivery, opening and signing status is visible the whole time.
Encrypted storage, separated — Xchange documents are held in a database and storage area kept entirely apart from the signing service.
Retention you control — documents are deleted automatically after your organization's retention period (30 days by default).
Minimal external accounts — a recipient without a dSign account gets one limited to signing that single document.
Deadline reminders — a single reminder before the signing deadline expires, with a direct link to the document.
Open Xchange portal

Getting started

dSign runs as a browser extension. The Windows companion app is only needed if you sign with a physical smart card or USB token.

1

Install

Run the installer, then add the dSign extension to Chrome or Edge. No administrator rights required.

2

Sign in

Use the account provided by your organization's administrator — or sign in with Google or Microsoft.

3

Sign

Open a document, click Sign, choose your certificate and place the signature. The signed file downloads automatically.

Download dSign

Enter your e-mail address and we'll send you a download link for the Windows installer.

Windows installer

Checking available version…

The browser extension is installed separately from the Chrome Web Store — the installer will guide you. Signing with cloud certificates, Click to Sign or Specimen does not require this app.