Two levels of one solution

From instantly signing a document in your browser for free, to complete digitization of the entire document lifecycle integrated into your systems.

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  • Web application
  • Windows
  • macOS
Quick solution

Open the document, add a signature, save. No registration, no setup, free.

Signature types
Simplesimple electronic signature
Handwrittenhandwritten (biometric) signature
Certificatesignature via bank identity
Bank iD Signsimple electronic signature
Initialsinitials
Form fields
Texttext field to fill in
Checkboxcheckbox field
Signosoft document editor

Search and page previews

Full-text search in the document and a page overview for quick navigation.

Drawing and highlighting

Add your own notes and highlights directly in the document before signing.

Inserting images

Add a stamp, logo, or other graphic anywhere you like.

Document management

Print or download the finished document, or add more to the one in progress.

Typical situations where the quick solution fits best.

01

Quick signature with your finger on the phone

The document arrives, you open it on your phone, sign with your finger, and send it. No printer, no computer, no waiting to get back to the office.

Quick signature with your finger on the phone
02

A photographed signature instead of printing and scanning

Photograph your signature once and insert it into documents. It replaces the whole print → sign → scan → send chain.

A photographed signature instead of printing and scanning
03

Signing a contract with greater legal certainty

Where a simple signature isn't enough, sign with a local certificate or via Bank iD*.
*Czech Republic only

Signing a contract with greater legal certainty

All your documents clearly in one place

Inbox and sent, documents awaiting signature, completed documents, templates, and trash. Folders that need action show a count of pending documents.

You'll always find what you need

Search by name and sort documents by date, name, sender, or status, ascending or descending. Bulk selection lets you work with multiple documents at once, plus list refresh and pagination.

Get oriented within seconds

For every document you'll see its name, sender and recipients, status with signature count, and the date of the last change. Multiple recipients are shown collapsed, and documents in one envelope can be expanded. Color-coded statuses immediately show whether your action is needed, you're waiting on others, or it's done.

Sign from anywhere

Through the Open document button you can use the quick Simple Mode editor, load a document directly from Dropbox, Google Drive or OneDrive, or create an envelope for multiple documents signed together.

Everything important within reach

In the top right corner you'll find your credit balance, language switcher, app switcher, and account menu for quick access to important settings.

Here's where this option reaches its limit. Even with registration, it stays focused on individuals and individual documents. Once you need a controlled workflow with signing order, bulk sending, signer identity verification, or integration with company systems, it's time to move to the full-featured solution.

Full-featured solution

A complete solution for the whole document lifecycle

A document isn't created by signing, and signing isn't where it ends. Signosoft covers the whole process — from creating the document, through preparation and identifying participants, to signing, securing, archiving, and handing it off to other systems. And you can carry out almost every step in two ways: in the Signosoft app, or programmatically through the API.

Start where your documents actually come from. Signosoft doesn't require you to change where the document is created just because of the signature.

  • From the customer's system

    The document is created in a CRM, ERP or other business application and handed to Signosoft automatically via the REST API.

  • In the Signosoft app

    Upload a PDF to the web app and set up the signing process — no development required.

  • From a form or template

    A reusable template or web form that the user fills in before signing.

Document preparation and workflow

Add what everyone needs to fill in and where they need to sign, and set who signs and the signing rules — no coding, just drag a field onto the page.

  • PDF upload
  • Form fields
  • Signature fields
  • Participant order and roles
  • Document templates
  • AcroForm
  • Text fields, checkboxes, radio buttons
  • Dropdowns, images, required fields
  • Multiple documents in one contract

Combined documents aren't physically merged. When you add more than one PDF to a single contract, the signer sees them together as one signing process — but they remain separate files, not a single flattened PDF. Each one keeps its own identity in the archive too.

Administration

Who signs what, and in what order

You decide who signs, what, and how. You define the signing parties, signature fields, order, signing method, and the required level of verification.

A single document can combine multiple signers and multiple signing methods. A typical business scenario: the company signs with a certificate, while the customer or patient signs by hand on a tablet or signature pad.

What's on the screen

The editor has three parts: what and who on the left, the document in the middle, and tools on the right. A single button at the top starts the process.

  • Documents

    The list of documents in this contract. Use the + button to add more — they're then signed together as a single unit.

  • Recipients

    Who signs the document. The Sign in order toggle sets whether signing happens in a set order or all at once. In Person means signing on the spot, on a single device.

  • Forms for signer — signature fields

    The signing method you choose for a given field: Simple, Handwritten, Certificate, Bank iD Sign, or Initials.

  • Form fields

    Text, Checkbox, Radio Button and Dropdown — what the signer fills in before signing.

  • Special Fields

    Fields that fill in automatically from the signer's details: first name, last name, full name, email, phone, and more.

  • Document canvas

    The PDF preview where you drag fields onto the page. Bottom right has pagination and zoom; the right-hand toolbar has search, drawing, highlighter, image insertion, and help.

Top bar: what happens to a finished document

The green Send to Sign button is the main action — it creates a signing request and sends it to the recipients. If you're signing it yourself and have your fields placed, you can sign the document right away, without sending it.

  • Rename document renames the document
  • Attachment attach a file to the document
  • Save template save it as a reusable template
  • Send to email send it by email
  • Validate verify the signatures in the document

Next to them are icons for printing, downloading, and document settings. The green figure with the dollar sign is your account credit balance, the dot grid switches between Signosoft apps, and the avatar opens the account menu.

Signing request, or instant signing. When more than one person signs a document, sending it creates a signing request, and the system tracks who has already signed and who's still pending. When you're signing alone, you can just place your fields and sign right away — no waiting, no sending to anyone.

Sending the document

The prepared document is sent out with the Send to Sign button in the app, or by calling the API. That turns the document into a live signing process.

At this stage, the system creates signing requests for every signer listed on the document — based on the signature method, verification level, and order assigned to each. From then on, Signosoft tracks who has signed and who's still pending.

POST /v1/documents
{
  "template_id": "tpl_984f8d2",
  "recipients": [
    {
      "email": "customer@email.cz",
      "role": "signer",
      "signature_type": "bank_id"
    }
  ],
  "metadata": {
    "deal_id": "deal_39281"
  }
}

Identity verification and document signing

Two paths, depending on where the signer is. That determines how their identity is verified, and which signature types are available.

On-site signing

The signer stands in front of an employee — at a branch, hospital, or point of sale.

Identity verification

This usually happens outside Signosoft — the employee physically checks an ID document. The system doesn't need to verify identity itself, since a person already did. Signosoft's verification tools can still be used if the process requires documented proof.

  • Initials a mark; can't be combined with other methods
  • Handwritten a handwritten signature captured with real pressure
  • Certificate a commercial or qualified certificate

Remote signing

The signer isn't physically present. Signosoft sends them a secure link by email, SMS, or WhatsApp, and they sign it in their browser.

Identity verification

Here, no one checks an ID document. The system itself must securely verify the signer's identity — otherwise there's no proof of who actually signed the document. Signosoft offers four ways to do this, chosen based on how sensitive the process is (see identity verification).

  • Simple a basic signature
  • Initials a mark; can't be combined with other methods
  • Handwritten a handwritten signature captured with real pressure
  • Certificate a commercial or qualified certificate
  • BankIdSign Bank iD Sign CZ only

Identity verification

From a one-time password to ID verification with a liveness check. Choose the method that fits how sensitive the process is — you can even use a different one for each participant on the same document.

Document level

Before the document is even opened

The signer must verify their identity before they ever see the document. Delivering the link alone isn't proof of the recipient's identity.

Signature field level

At the moment of signing

Identity is verified only at the moment the document is signed. Each signer can use their own verification method based on their role.

Both levels use the same four verification methods, and they can be combined — a document opened with a one-time password can still be signed only after ID verification.

One-time password (OTP)

A single-use password the signer receives by email, SMS, or WhatsApp.

Fixed password

A password agreed on in advance that the signer knows and uses to prove their identity.

ID document + liveness check

Identity verification via an ID document plus a liveness check — confirming that a real person, not a photo or recording, is in front of the camera.

Bank iD

Identity verification through bank identity.

This is what it looks like in the app

The Protection tab on a signature field offers exactly these four verification methods. The same choice is also available at the whole-document level.

  • One-Time Password a one-time code sent by email, SMS, or WhatsApp

  • Fixed Password a fixed password the signer already knows

  • Identity Verification an ID document plus a liveness check

  • Bank iD verification through a bank identity provider

*Bank iD is only available in the Czech Republic. In other countries, use a one-time password, fixed password, or ID verification with a liveness check.

Signature types

Choose the signature type and level of legal certainty that fits each process — all in one product.

Simple electronic signature

A straightforward way to confirm a document. An initial is its simplified form for approving individual pages of the document.

Handwritten (biometric) signature

A straightforward way to confirm a document. An initial is its simplified form for approving individual pages of the document.

Commercial or qualified certificate

A straightforward way to confirm a document. An initial is its simplified form for approving individual pages of the document.

Bank iD Sign CZ only

An electronic signature confirmed through your bank identity.

You choose the signature type for each field

Just like identity verification, the signature type is set per individual signature field. That means a single document can carry both your company's certificate signature and a client's handwritten signature at the same time.

  • Simple a simple signature

  • Initials an initial; cannot be combined with other methods

  • Handwritten a handwritten signature that captures real pen pressure

  • Certificate a commercial or qualified certificate

  • BankIdSign Bank iD Sign CZ only

Bank iD Sign is only available in the Czech Republic. For cross-border processes, use a certificate, handwritten, or simple signature.

Audit log

Throughout the document's entire lifecycle, an audit log is created that records every action taken on it. It's this log that later provides the evidence needed to prove the document's authenticity and origin — including each individual signature.

Who

User accounts and signers, including how their identity was verified.

When & from where

Timestamps for each operation and IP addresses.

What happened

Every operation on the document — from creation through distribution to each signature.

With what content

Document hashes that prove the content hasn't changed since signing.

Signature data is cryptographically linked to the document, and its integrity is verified during processing.

Processing and storage

Once signing is complete, the document can be archived in Signosoft, handed off to your company systems — or both.

Archived in Signosoft

The signed document stays in Signosoft's secure storage, complete with its full audit trail.

Handed off to your systems

Through APIs or plugins, the document travels to wherever your company actually manages it:

  • CRM
  • DMS
  • Electronic archive
  • Back-office
  • ERP

Documents don't have to stay in Signosoft. Once they've been handed off to your systems and no longer need to be kept there, they can be deleted from Signosoft right away — so you don't end up with a second place where documents live.

Stamp design: how your signature appears in the document

The stamp is what remains visible on the page after signing. You control its look yourself — from the border and logo to the font and color.

Signature types

Logo your own logo in the stamp

Border a frame around the stamp

Custom Text a custom caption, e.g. "Digitally signed by"

Signature source

Tabs determine where the signature comes from: Type (typed name), Draw (hand-drawn signature), Certificate (from a certificate), or Initials.

Text details

What's printed next to the signature in the stamp: name, date, and optionally an IP address.