How to Sign a Document Using iAM Smart
Step-by-step guide for signers verifying their identity with iAM Smart
Answer
iAM Smart is the HKSAR Government's digital identity platform. When a sender requires identity verification, you can use the iAM Smart mobile app to confirm your identity via QR code scan and biometric (Face / PIN) authentication.
What You Need- The iAM Smart app installed on your smartphone (available on App Store and Google Play)
- A registered and active iAM Smart account
- The signing link from the envelope invitation email
Step 1: Open the signing link
Click the signing link in the envelope invitation email you received. The document will open in Foxit eSign.
Step 2: Review and complete the required fields, add your signature, and click Finish.
Apply your signature to the required fields and click Finish to submit.
Step 3: Select iAM Smart as your verification method
A "Verify your identity to complete signing" dialog will appear. Click Continue with iAM Smart →
.
Step 4: Scan the QR code
A QR code will appear on screen. Open the iAM Smart app on your phone, tap Scan QR Code, and point your camera at the QR code displayed in Foxit eSign.
Step 5: Authenticate on your device
The iAM Smart app will prompt you to confirm the request using Face ID, fingerprint, or your PIN. Complete the authentication on your phone.
Step 6: Return to the document
Once authentication succeeds, Foxit eSign will automatically update to show your verified identity. You will be returned to the signed document.
QR code expired
iAM Smart QR codes expire after a short period. If the QR code has expired, refresh the page or click Retry to generate a new one.
App not responding
Ensure your iAM Smart app is up to date and that your phone has an active internet connection. If the app still does not respond, force-close it, reopen it, and try scanning again.
Authentication failed
If biometric authentication fails, the iAM Smart app will offer the option to use your PIN instead. Ensure you are using the PIN set during iAM Smart registration.
Legal & Audit TrailBoth iD-One and iAM Smart are legally equivalent and recognised under Hong Kong's Electronic Transactions Ordinance (ETO) (Cap 553). Your chosen method and verification timestamp are recorded in the Foxit eSign audit trail alongside your signature.
Frequently Asked Questions
Q: Do I need an internet connection on my phone?
A: Yes — the iAM Smart app requires an active internet connection to process the QR code and biometric authentication.
Q: Can I use iAM Smart on a desktop browser?
A: No — iAM Smart authentication happens on your phone. The QR code on the desktop is scanned by the mobile app.
Q: Is my signature legally binding?
A: Yes. Signatures verified with iAM Smart comply with Hong Kong's Electronic Transactions Ordinance and use HKSAR Government-grade digital identity.
Q: Can I switch to iD-One instead?
A: Yes — click Back to document on the iAM Smart screen and select Continue with iD-One → on the method picker.