Fields placed for you
Auto-place reads labels such as Signature, Date, Name and Title next to signature lines. Drag, resize or add fields if you need to.
Passkey-X Sign · Free
Free e-signature: sign PDF documents online
Every Passkey-X account can sign its own documents free, 10 a month. Upload a PDF, let auto-place find the signature lines, sign by drawing, typing or uploading your signature, and download a signed PDF that anyone can verify.
10 free signatures a month Encrypted on your device Verifiable by anyone
Included free
What free document signing includes
Draw, type or upload
Draw your signature, type it in a handwriting style, or upload a photo of it. The paper background is removed for you.
Signed PDF with certificate page
Download the signed PDF with a certificate page. The original file is never changed, so its hash always checks out.
Verify code
Each signed document gets a verify code. Anyone with the file and the code can check it at passkey-x.com/verify, without an account.
Tamper-evident record
Every step, including the fields and what was filled in, is recorded in a tamper-evident hash chain.
End-to-end encrypted
Documents are encrypted on your device before upload and kept in your vault.
How it works
Three steps to get started
- Step 1
Upload your PDF
Or a photo of a page. It's encrypted on your device and saved in your vault.
- Step 2
Fields are placed for you
Auto-place finds the signature, date, name and title lines. Adjust them if you need to.
- Step 3
Sign and download
Draw, type or upload your signature, tap Finish, and download the signed PDF with its certificate page.
Security
Signatures you can prove, documents we can't read
- Each signature is ECDSA P-256 over the document's SHA-256 hash
- Verification at passkey-x.com/verify checks the file in your browser; only its SHA-256 is sent
- Documents are encrypted on your device before upload
- Every step is recorded in a tamper-evident hash chain
Limits and upgrades
What's free, and what paid plans add
Free
- Sign your own documents: 10 a calendar month, on every plan including Free
- You are the only signer on free documents
- Signed PDF, certificate page and verify code included
- Anyone can verify a signed document free, without an account
When you need more
- Passkey-X Sign add-on for any plan, from Free to Business; included in Enterprise
- Send documents to members and outside signers, who don't need an account
- Signing order, reminders and a document register
- One add-on covers the whole organization, its vaults and subsidiaries
Questions
Free e-signature FAQ
Is the e-signature really free?
Yes. Every Passkey-X account, including Free, can sign its own documents free, 10 a calendar month. Sending documents to other people to sign needs the Passkey-X Sign add-on, which works with any plan, from Free to Business, and is included in Enterprise.
Do I need an account to sign?
You need a free Passkey-X account to sign your own documents, because the document and your signing key are kept in your encrypted vault. People who only verify a signed document don't need an account.
What happens after 10 signatures in a month?
Your free allowance starts again at the beginning of the next calendar month. Add Passkey-X Sign to any plan for unlimited signing and requests to other people.
Is an electronic signature legally binding?
In most countries electronic signatures are legally valid for most agreements (for example under the ESIGN Act and UETA in the US, eIDAS in the EU, and the IT Act in India). Some documents, such as wills or property deeds in some places, still need a handwritten or qualified signature, so check the rules for your document.
How can someone check that my signed PDF is genuine?
Share the signed PDF and its verify code. Anyone can check them at passkey-x.com/verify: the file stays in their browser and every signature is checked there.
Can I upload a picture of my signature?
Yes. Upload a photo or scan of your signature on paper and Passkey-X removes the background and trims it. You can also draw it or type it.
Can Passkey-X read my documents?
No. Documents are encrypted on your device before upload.
Start free in a minute.
Create a free Passkey-X account for your encrypted vault, Secure Send and 10 free signatures a month. No trial clock.