Sign PDFs with your eID
Review the document, choose the visible mark position, and sign cryptographically using the certificate and private key on your card.
Your identity, directly on iPhone
Sign PDFs.Stay in control.
Read your Romanian eID, prepare proof of address, and sign documents directly on iPhone — with your data under your control.
The private key stays on your eID.
One place
Everything you need for your Romanian eID and documents.
From reading the card to signing and verification, every flow is built for iPhone and explained clearly, step by step.
01
Read your eID over NFC
Access available identity data and the holder photo in a local session authorized with the CAN and data PIN.
Prepare proof of address
Generate a compact, one-page PDF containing identity data, address, and the holder photo.
Verify signatures
Analyze integrity, revisions, signers, certificates, timestamps, and revocation status for compatible signed PDFs.
Scan and complete
Turn paper documents into PDFs, then save them, add a handwritten signature, or continue with electronic signing.
Keep local control
Search, preview, and share documents from local history. Private iCloud sync for eligible PDFs is optional.
Your identity. Under your control.
Simple, but real
Three steps. The signature stays yours.
The app guides you through content, placement, and eID authorization without turning signing into a black box.
- 01
Choose and review the PDF
Open the document and check the page you are about to sign.
- 02
Place the visible mark
Choose the page and exact position for the visible signature representation.
- 03
Authorize with your eID
Hold the card near your iPhone and use the signing PIN; the private key never leaves the card.
Product, not promises
See exactly what it looks like.
A native interface with light and dark appearances, and the same clear flows in Romanian and English.
Local by design
Your document should not become our document.
No account is required. Reading and signing happen locally over NFC. Trusted timestamp and complete validation may contact only services and authorities referenced by certificates; the PDF content is not uploaded to CEI One servers for signing.
Read how we protect data↗- CAN and PINs are never synced to iCloud.
- The signing private key stays on your eID.
- Private iCloud library sync is optional.
- The website uses no advertising trackers or analytics cookies.
Before you begin
You need your eID, iPhone, and access codes.
An NFC-capable iPhone
iOS 26.2 or a later version.
A valid Romanian eID
Your electronic identity card and the CAN printed on it.
The required PINs
Data PIN or signing PIN, depending on the operation.
Internet when required
For timestamps, revocation evidence, complete validation, and optional iCloud sync.
Frequently asked questions
Clear answers before you hold up your card.
01Is CEI One an official government app?
No. CEI One is an independent app for using the Romanian electronic identity card on iPhone.
02Is the signature only an image placed on the PDF?
No. Electronic signing creates a cryptographic signature using the certificate and private key on your eID. The visible mark is only its representation on the page.
03Where do I find the CAN?
The CAN is the 6-digit code printed on the Romanian electronic identity card. It helps establish the secure NFC session.
04What is the difference between the data PIN and signing PIN?
The data PIN authorizes access to information available on the card. The signing PIN authorizes the cryptographic signing operation.
05What does the app verify in a signed PDF?
For compatible formats it checks integrity, signed revisions, certificates, trust chains, timestamps, and OCSP/CRL revocation information.
06Does everything work offline?
Reading and some operations are local. Trusted timestamps, refreshed revocation evidence, and complete validation require an internet connection.
07What is sent to iCloud?
Only eligible PDFs and library metadata, if you enable sync. CAN, PINs, NFC identity data, and the eID photo are not synced.
08Can I share documents through AirDrop or Messages?
Yes. PDFs can be saved to Files or shared through the standard iOS share sheet.
09What if my iPhone cannot read the card?
Remove a thick case, place the eID under the top area of your iPhone, and keep both still until the NFC session completes.
Your identity. Under your control.
CEI One is coming to the App Store.
Read, prove, sign, and verify from one iPhone app.