Signatures your counterparties can trust.
Send for signature with a secure link. Each signer confirms a one-time code from their email, signs in order or all at once, and receives a sealed signed copy with a certificate of completion.
- Signers never need an account
- A one-time email code for every signer
- Every signed copy sealed
- Ada ObiNorthline Studio · code verifiedSigned 10:42
- Tunde BakareFoundry LabsViewing now
- Zara BelloCountersigns for NorthlineWaiting
Who signed, when and how.
Every signature carries its evidence: the code that confirmed the signer, the time, and how they signed. Signers receive a certificate of completion. The full audit trail, with IP addresses and devices, stays with your team.
- Drawn, typed or saved signatures, and initials
- Certificate of completion for every signer
- A private audit certificate for your team
- SHA-256
- 3f9a 2c1b 7d40 e8c6 … 51ad 9e21
- Timestamp
- 6 Nov 2026 · 10:42:18 UTC, from a trusted authority
- Signers
- Ada Obi, Tunde Bakare · each verified by email code
Sealed so any change shows.
When the last person signs, the signed copy is sealed with a timestamp from a trusted authority. Any PDF reader can then show whether a single byte has changed. Only a fingerprint of the file is sent to the authority, never the document.
- A trusted RFC 3161 timestamp on every signed copy
- Uploaded documents keep their own pages
- The certificate is a separate file, nothing added
Everything that comes with it.
Choose whether signers go one after another or together, and follow each one.
Remind the people still to sign, and let a request expire when it should.
Add a colleague to sign on your company’s behalf, after or alongside the customer.
Send copies to people who only need to read, and recall or withdraw a request to change it.
Signatures, initials, names, dates, text, tick boxes and photos, placed on the page.
Attachments are read inside the signing page and fixed by their fingerprint when sent.
Are electronic signatures legally binding?
In most countries, for most agreements, yes. Qasha confirms each signer with a code sent to their email, records when and how they signed, and seals the signed copy so any later change shows. Some documents and some institutions still require wet ink or a qualified digital signature, so check what applies to yours.
Do signers need an account?
No. Each signer receives a secure link and confirms who they are with a one-time code sent to their email.
What do signers receive at the end?
The signed copy and a certificate of completion naming who signed and when. The audit trail with IP addresses and devices is kept for your team and never sent to them.
Bring the whole deal into one place.
We’ll walk through your process, from first email to recurring invoice, and show you where Qasha fits.