Send the contract. Get it back signed.
Your client opens it with an emailed code, signs in the browser, and you get the PDF with its certificate.
From CZK 590 a month. Your client needs no account.
How it works
You upload a PDF. DOXIO computes its SHA-256 fingerprint and stores it encrypted in the EU.
Drag the document into the client's folder, such as Clients / Novak / Contracts.
Your client uploads documents to their workspace. You label them and move them across the board.
Enter your client's email, place the signature box and switch on an automatic reminder.
Your client opens the link and confirms it's them with a six-digit code from their inbox. No account needed.
They sign right in the browser by typing their name or drawing with a finger or mouse.
You get the signed PDF with a signature certificate. Every step is written to the audit trail.
For offices that send documents to clients every day
All you need is your client's email address. DOXIO takes care of secure delivery, the signature and the record of what happened.
| Office | Typical documents | ||
|---|---|---|---|
| Accounting & tax officesPowers of attorney, bookkeeping agreements and hand-over protocols signed without printing or waiting for the post. | Power of attorney | Bookkeeping agreement | Hand-over protocol |
| Law firmsShare sensitive documents only with a verified recipient and keep an audit trail with the document's fingerprint for every signature. | Engagement letter | Power of attorney | NDA |
| Real-estate agenciesSeller and buyer sign the same agreement, one after another or in any order, each on their own phone. | Reservation agreement | Brokerage agreement | Hand-over protocol |
| HR & people teamsNDAs, policy acknowledgements and consents for employees and candidates. You always know who has signed. | NDA | Policy acknowledgement | Data-processing consent |
Accounting & tax offices
Power of attorney, Bookkeeping agreement, Hand-over protocol
Powers of attorney, bookkeeping agreements and hand-over protocols signed without printing or waiting for the post.
Law firms
Engagement letter, Power of attorney, NDA
Share sensitive documents only with a verified recipient and keep an audit trail with the document's fingerprint for every signature.
Real-estate agencies
Reservation agreement, Brokerage agreement, Hand-over protocol
Seller and buyer sign the same agreement, one after another or in any order, each on their own phone.
HR & people teams
NDA, Policy acknowledgement, Data-processing consent
NDAs, policy acknowledgements and consents for employees and candidates. You always know who has signed.
Some documents legally require an officially verified or qualified signature. If you're not sure, ask your legal counsel.
Client documents in one workspace, not in your inbox
A client workspace is shared between your office and one client, with any of their contacts. An accountant collects invoices and statements there, a law firm the papers for a case file, an estate agent the title extract and energy certificate, HR the paperwork for a new hire. The client uploads; you see what's done and what's still missing.
- Clients upload their own documents
- Contracts, powers of attorney, invoices or a pre-employment medical certificate go straight into their workspace as a PDF or a photo. DOXIO turns photos into PDFs.
- A board that fits your work
- Start from a preset for accounting, a legal case file, a property sale, employee onboarding or client onboarding, or from your own template. A workspace can have several sections, such as Documents and Contracts, each with its own board.
- A checklist of the documents you need
- List what you need from the client, say the land registry extract, energy certificate and purchase agreement, with a due date for each item. The client uploads against each item and you approve it. You both see what's still missing.
- Monthly paperwork with reminders
- Bank statement and invoices every month by the 10th? Set the request up once. DOXIO opens it again each month and emails the client a reminder about anything not yet uploaded.
- Comments instead of email ping-pong
- When something is missing, say so on the document itself. The client gets an email, replies in their workspace, and the conversation stays with the document. Internal notes are never shown to the client.
- A portal without accounts or passwords
- Invite the client by email. They sign in with a six-digit code from their inbox and see only the workspaces you invited them to. From Tým, the portal carries your office's logo and colour.
Client workspaces are included in every plan; the plan sets how many can be active at once.
What DOXIO does between sending and signing
Up to 10 signers
Signers go one after another in a fixed order, or in parallel. You always see who has signed and who's next.
Automatic reminders
If your client hasn't signed, DOXIO emails a reminder with a fresh link after the number of days you choose.
Signature certificate
Who signed, when, from which IP and device, and the exact fingerprint of the document. Appended to the PDF or as a separate file.
Proof you can check for yourself
The rules DOXIO is built on are enforced by the code and the database itself. Here they are.
A hash-chained audit trail
Every event carries the fingerprint of the one before it. Records can only be appended and the database itself refuses to rewrite history, so any tampering shows.
An example audit trail for one document. Fingerprints are shortened and made up.
Hosted in the EU
The application, database and file storage run in EU regions. Our list of sub-processors is public.
GDPR
A data processing agreement, an export of all your organization's data and controlled deletion when you leave.
Simple electronic signature under eIDAS
A signature with an audit trail under Regulation (EU) No 910/2014. It is not a qualified electronic signature (QES), and we don't claim otherwise.
Secrets stored only as hashes
Share links and codes are stored only as hashes. Code entry has a limited number of attempts and every link has an expiry.
Connect DOXIO to the systems you already use
Start signing rounds from templates over the REST API, receive events through signed webhooks and download the finished PDF. Read access from Tým; starting rounds and webhooks from Kancelář.
- API keys stored only as SHA-256
- Idempotent run creation with Idempotency-Key
- HMAC-SHA256 signed webhooks with automatic retries
curl -X POST https://doxio.pro/api/v1/templates/TEMPLATE_ID/runs \
-H "Authorization: Bearer $DOXIO_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: order-2026-0001" \
-d '{
"recipients": { "client": { "email": "jana@example.com", "name": "Jana Nováková", "locale": "cs" } },
"prefill": { "contract_no": "2026-0001" },
"external_id": "ORDER-2026-0001"
}'Webhook events
- run.signer_signed
- run.completed
- run.declined
- run.cancelled
- run.expired
- run.org_signature_failed
From CZK 590 a month, unlimited signatures on every plan
You pay for active client workspaces, not for signatures. Try any plan free for 14 days.
Start
10 active client workspaces · 2 team seats included · 10 GB storage
CZK 590/ month
TýmRight for most offices
75 active client workspaces · 5 team seats included · 50 GB storage
CZK 1,490/ month
Kancelář
300 active client workspaces · 15 team seats included · 200 GB storage
CZK 2,990/ month
Enterprise
Unlimited active client workspaces · 30 team seats included · 1 TB storage
fromCZK 6,900/ month
Prices are final — we are not VAT registered, so no VAT is added.
Frequently asked questions
Is a DOXIO signature legally valid?
DOXIO produces a simple electronic signature (SES) under the eIDAS regulation, with a full audit trail: who signed, when, from which IP address and exactly which version of the document. It suits most business agreements. It is not a qualified electronic signature (QES); where the law requires one, or an officially verified signature, consult your legal counsel.
Do my clients need an account?
No. Clients open and sign documents through a secure link plus a one-time code from their email. Only your team members need a DOXIO account.
What does a client need to sign?
Just an email address and a web browser — on a computer or a phone. Nothing to install. They can also decline to sign, and you'll know right away.
What's on the signature certificate?
The signer's name and email, the time of signing, IP address, device and browser, filled-in fields and the SHA-256 fingerprint of the original document. From Tým you can deliver it as a separate PDF.
Can several people sign one document?
Yes, up to 10 signers on every plan — in a fixed order or in parallel. Each signer has their own link and their own code.
Where is my data stored?
Documents and data are hosted on Railway infrastructure pinned to the EU (application, database and object storage all run in EU regions). See our Sub-processors page for the full list.
Can I cancel anytime?
Yes. There's no free tier, but every plan starts with a 14-day free trial, and you can cancel at any time from your billing settings. Nothing is charged until the trial ends.
How do clients upload documents to their workspace?
Invite them by email. They sign in to the portal with a six-digit code from their inbox, so there's no account or password to set up. If you've set up a checklist of requested documents, they upload straight against each item. They can upload PDF, JPEG or PNG files up to 50 MB, and DOXIO turns photos into PDFs. Client workspaces are included in every plan; the plan sets how many can be active at once.
How do the plans differ?
Mainly in how many client workspaces can be active, team seats and storage. Higher plans add your own branding, bulk send, accounting exports, the API and the organization signature. Archived workspaces don't count towards the limit. Signatures and shares are unlimited on every plan, with prices from CZK 590 a month.
Do you add VAT?
No. We are not VAT registered, so the prices shown are final. If we become VAT registered, VAT at the statutory rate will be added to the prices, and we'll tell you in advance.
Send your first document for signature today
Setting up your organization takes a few minutes. The first 14 days are on us.
Start your 14-day free trialYour card is saved at sign-up but not charged until the trial ends. Cancel anytime.