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Electronic signing with proof

Collect signatures. In minutes, not days.

Upload a PDF, place the fields, send. Your recipients sign on their phone, without an account and without an app. You get one final version with a proof page and an audit log that cannot be altered unnoticed.

Hosted in Frankfurt (EU)No trackers9 languages

UploadManagementPurchasingWarehouseSealedArchive= SHA-256E-mail= SHA-256Purchase approvalDT-2026-00000417SHA-256
The problem

Paper is slow. Scans prove nothing.

Print, get it signed, scan, file. And in the end nobody knows which version is the right one.

  • Paper gets lost

    Briefings and work instructions sit in binders, mailboxes and on desks. Chasing them costs time.

  • Scans are not traceable

    A scanned sheet says nothing about who saw what and when. In a dispute, the proof is missing.

  • Approvals stall

    An order waits for three signatures. Each one takes a different route, and nobody knows where it is right now.

DocTrace turns this into a tracked request with a reference number, a status and an audit log.
It's this simple

Four steps to a signature

No project, no training. If you can write an e-mail, you can collect a signature with DocTrace.

  1. Upload

    Upload a PDF. DocTrace immediately calculates the checksum of the original.

  2. Place fields

    Signature, name, date, checkbox: drag them onto the page. DocTrace fills in name and location from the recipient's master data.

  3. Send

    Tick the recipients, choose a deadline, send. Everyone receives a personal link by e-mail.

  4. Done

    The person signs with their finger. Both sides receive the same final version with the proof page.

The DocTrace overview with ongoing and completed requests
Signing on a phone: document with a signature field
Recipients need no account and no app. The link in the e-mail is enough, on a phone, tablet or computer.
Document chain

One document, several stages. In the right order.

A purchase approval goes first to management, then to purchasing, then to the warehouse. DocTrace only calls up each stage once the previous one has signed, and shows everyone what has already been signed before them.

  • Flexible order

    The default order is set on the document. It can be changed whenever a chain is started: purchasing first, then management, if that is what fits this time.

  • One signature per stage

    A stage is a group, for example "Warehouse". Every member receives a link; whoever signs first completes the stage. The other links become invalid.

  • Reject with a reason

    If something is wrong, the stage rejects and has to say why. The chain stops, the initiator receives an e-mail, and no final version is created.

  • My tasks

    Every member sees in DocTrace which stages are currently waiting for their signature and completes them with one click.

External people, such as a supplier, can be a stage as well. They sign via a link, without an account.

More about document chains

ManagementSigned1 / 3PurchasingSigned2 / 3WarehouseAwaiting signature3 / 3
Credentials.pdfavailable until 14.10.2026Locked until signedReleased
Release after signing

Sign first, then receive.

Credentials, tender documents, a data room link: some things may only go out once the signature is in. DocTrace releases them automatically, the moment the person completes the signing.

  • Non-disclosure agreement

    Then the confidential file or the link to the data room.

  • Privacy agreement

    Then the personal credentials for the app, individual for each person.

  • Confidentiality agreement

    Then the tender documents, only for the period you set.

More about release

  • Encrypted

    Every file gets its own key. When the release expires, the key is deleted and the file becomes permanently unreadable.

  • Expires

    Available for a period after signing, for example 7 days. If you wish, only a single time.

  • In the proof

    What was released is listed on the proof page and in the audit log: type, title, checksum. Never the content of personal credentials.

  • Never in the e-mail

    The e-mail only states what has been released. Retrieval is via the personal link, never as an attachment, never a password in plain text.

Proof and security

Built to hold up later.

A signature is only as good as the proof behind it. DocTrace records every step so that it can be verified, even years later.

Signed: 01.10.2026 14:32:07 (Europe/Vienna)Time source: DocTrace server
  • One final version

    The signed PDF is generated exactly once. Archive, e-mail attachment and download are identical byte for byte. The SHA-256 checksum proves it.

  • Chained audit log

    Every log entry contains the checksum of the previous one. If anyone alters an entry, the chain no longer matches. DocTrace checks this on every view.

  • Time from the server only

    All timestamps come from the server's clock, never from the person's device. The proof page in the PDF names the time source.

  • Personal links that expire

    Every link belongs to exactly one person and one request, expires, can be revoked and is locked once the request is completed.

  • Companies strictly separated

    Every company has its own data, its own roles and its own audit chain. The separation is enforced in the database, not just in the user interface.

  • Hosted in Frankfurt

    Servers and storage are located in the Google Cloud region Frankfurt (EU). Stored files can be neither deleted nor overwritten.

  • Transparent support

    Our support team can only view your company read-only, only on request, and only for a limited time. Every access is recorded in the audit log and listed for you under "Support access".

DocTrace is a documented electronic signing process with proof, not a qualified electronic signature (QES). We explain openly what that means. Legal matters in the Help Center

Everything about security

For teams

From one person to the whole company

You need none of this for a single signature. As your needs grow, DocTrace grows with you.

  • Users, roles, permissions

    Clerk, employee, company admin. Or custom roles with exactly the permissions that are needed.

  • People without web access

    Anyone who only needs to sign gets no login. Warehouse staff are members of a stage and complete their tasks via the e-mail link.

  • Employees see only what concerns them

    An employee sees their own tasks and their own requests, not the documents of the whole company. Permissions decide what each person sees.

  • Your own mail server or DocTrace delivery

    E-mails go out through your SMTP server with your sender address. Or you let DocTrace send them, with no setup.

  • 9 languages

    German, English, Spanish, French, Hungarian, Polish, Slovak, Chinese (Simplified and Traditional). Everyone sees their own language.

  • Help Center

    Every feature explained, with diagrams and screenshots, in all languages. For administrators and for signers.

  • Several companies, one login

    Two sites, or several clients if you are a service provider: one account, several companies, cleanly separated.

Use cases

What companies use DocTrace for

Examples, not customer testimonials. Wherever a sheet of paper is signed and filed away today.

  • Work instructions

    Every employee confirms by signature that they have read the instruction. With a date from the server.

  • Briefings

    Safety briefings and data protection briefings, signed with proof instead of collected in a folder.

  • Receipt confirmations

    Laptop, keys, company car: the handover is confirmed and the final version lands with both sides.

  • Purchase approvals

    Management, purchasing, warehouse: as a document chain in the right order, with rejection and a reason.

  • Leave requests

    The employee submits, the manager approves, HR confirms. Three stages, one document.

  • External partners

    Suppliers or customers sign via a link, without an account, in their own language.

  • NDA with release

    Sign the non-disclosure agreement first, then automatically receive the confidential file.

Pricing

Clear monthly prices. No surprises.

Every plan includes the proof page, the chained audit log, 9 languages and hosting in Frankfurt. Cancel monthly, billed through our payment partner Paddle.

Included in every plan

  • One final version with proof page and SHA-256
  • Chained, tamper-proof audit log
  • Document chain with stages
  • Signers without an account, on their phone
  • Users, roles and permissions
  • Your own mail server or DocTrace delivery
  • 9 languages and Help Center
  • Hosted in Frankfurt (EU)
Frequently asked questions

What companies ask us

Is a signature made with DocTrace legally valid?
DocTrace is a documented electronic signing process: the person signs on screen, and DocTrace records the sequence of events, timestamps, IP address, device and the person's confirmation. This is not a qualified electronic signature (QES). For many business processes such as briefings, receipt confirmations or internal approvals, that is sufficient. For contracts where the law requires written form or a QES, it is not. When in doubt, seek legal advice.
Do recipients need an account or an app?
No. The personal link in the e-mail is enough. It works in the browser on a phone, tablet or computer.
Where is the data stored?
On servers in the Google Cloud region Frankfurt (europe-west3), with storage in the same region. Every company is strictly separated from the others. We provide a data processing agreement.
Does DocTrace verify the person's identity?
No. DocTrace does not check any ID document. The person is identified by having received the link at their e-mail address. So make sure the addresses are correct.
Can I cancel?
Yes, monthly. The cancellation takes effect at the end of the current billing period. The details are in the Terms of Service.
Can I use my own mail server?
Yes. Enter your SMTP server and all e-mails go out with your sender address. Without an entry, DocTrace sends them for you.
What if a link expires?
You send the request again. A new link is created and the old one becomes invalid. Everything is recorded in the audit log.

Your next signature in minutes instead of days.

Request a demo or get started right away. We reply personally.