Are SignAja digital signatures official and legally valid?

Yes. Official digital signatures produced by SignAja are legally valid under the ITE Law. For documents with high legal risk, certified electronic signatures are available through a PSrE registered with Kominfo.

What is the difference between a regular and a certified electronic signature?

A regular electronic signature is enough for internal documents and simple agreements. Certified electronic signatures are used, for example, for high-value contracts, because the signer's identity is verified by a PSrE and backed by a digital certificate.

How do I check an electronic signature that has already been applied?

Every document carries an audit trail with the time, identity, and verification method. You can check the electronic signature directly from the SignAja dashboard or through the digital certificate embedded in the PDF file.

Can I create an electronic signature directly from my phone?

Yes. The recipient just opens the link sent over WhatsApp and creates an electronic signature by drawing on the phone screen. No app installation needed.

How many people can use this e-signature app at once?

One document can be sent to many signers at once, in an order you can set. This digital signature app also supports bulk sending for hundreds of similar documents.

SignAja by Ventera

Digital signatures over WhatsApp. Upload a PDF, send it, done in 60 seconds.

Signaja is a self-serve e-signature platform for Indonesian SMEs and corporations. Send documents by email or WhatsApp and get them signed within minutes, with an audit trail that is legally valid under the ITE Law.

Tiered signature strength, from basic signatures to certified signatures from a PSrE (licensed e-certification provider), without switching plans. A far lighter and cheaper alternative to Privy, DocuSign, or Mekari Sign.

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Are contracts still printed, wet-signed, scanned, and sent over WhatsApp?

The document signing process at most Indonesian SMEs hasn't changed in the last 20 years.

Print the document. Deliver it to whoever has to sign. Wait 2 to 5 days. Scan the result. Send it back over WhatsApp. Save it in a folder nobody remembers to open.

Signaja compresses this entire process into 60 seconds, with stronger legal evidence than a wet signature.

Legally valid under the ITE Law. Hash-chained audit trail. Delivered via WhatsApp.

With Signaja, companies can:

Send documents for signature in minutes, not days
Manage multiple signers with a clear signing order
Verify signer identity with a WhatsApp or SMS OTP
Upgrade to PSrE-certified signatures when needed
Bulk send 30 contracts at once from a template + CSV
Keep the full audit trail with verifiable integrity

Everything you need for digital signatures in Indonesia

From a freelancer signing a single invoice to an HR team sending 30 PKWT (fixed-term employment) contracts at once, Signaja works at every scale.

Self-serve Signing

Upload a PDF, drag and drop signature fields on each page, choose the signers, and send. No training, no sales calls, no annual contract.

WhatsApp Delivery

Invites are sent over WhatsApp, the main channel in Indonesia. Completion rates are far higher than with email alone.

Indonesian Contract Templates

Ready-to-use templates for PKWT, NDAs, SPKs (work orders), lease agreements, POs, and powers of attorney, in proper Indonesian legal language.

OTP Verification

Verify signer identity with a WhatsApp or SMS OTP before a signature is accepted. A bridge between basic and certified signatures.

Bulk Send & Mail Merge

HR uploads a CSV of 30 employees, and Signaja generates 30 personalized PKWT contracts and sends them all at once. Ideal for batch onboarding.

PSrE Integration

Step up to certified signatures from Peruri, Privy, VIDA, or TekenAja for documents that need notary-grade legal certainty, without switching platforms.

e-Meterai

PERURI e-Meterai (Rp10,000 electronic stamp duty) integration for commercial documents that must carry stamp duty.

Audit Trail Hash Chain

Every event (opened, signed, IP, device, timestamp) is hashed in sequence. Integrity evidence you can bring to a legal dispute.

Used across functions in the company

HR & People Ops: PKWT/PKWTT contracts, decision letters (SK), warning letters, offer letters. All from templates, all sendable in bulk.
Legal & Procurement: NDAs, MSAs, vendor agreements, and POs, with compliance templates and multi-party signing.
Finance: Invoices, quotations, and approvals with an auditable trail.
Sales: Send contracts to prospects straight from WhatsApp and close faster, without the print-scan-send cycle.

From document draft to official signature

A flow deliberately kept as simple as possible so non-technical teams can use it right away.

01
Upload PDF
Drag and drop the document to be signed.
02
Drag Signature Fields
Assign fields to each signer, set the order, and choose field types.
03
Send via WhatsApp / Email
Signers get a link, open it without logging in, and sign.
04
Finalize & Archive
The final PDF is flattened, the audit trail is saved, and the archive is searchable.

Connected to Ventera's corporate AI suite

Signaja is the signature layer used by other Ventera products.

SignAja

Stop printing, wet-signing, and scanning.

See how Signaja can move your company's entire signing process onto one self-serve, legally valid platform.

Just sign. Done in 60 seconds.

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