Electronic Signature
With inSign making contracts is easy as pie

inSign electronic signature
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Go digital - get inSign!

The electronic signature software enables the quick and easy signing of documents – in a 100% digital and 100% legally compliant process. Suitable for all company sizes, self-employed and freelancers.


legally compliant

100% data privacy
Made in Germany

80% of pro­cesses completed in just a day

customer satisfaction

Works with or
without app

Processing times
25 times faster

Return rates
reduced by 90%

As simple as writing an email!
PDF Dokument elektronisch signieren
electronic signature
Unterschriebenes PDF-Dokument
Save paper
No postage, no printer, no media discontinuity
No postage, no printer, no media discontinuity

Save time

Due to mandatory fields fewer documents with missing data
Due to mandatory fields fewer documents with missing data
Save money
Increasing efficiency by completing more processes within the same time.
Increasing efficiency
by completing
more processes
within the same time.

Reasons for the
e-signature inSign

Provable digital signatures can be made without special hardware. Installation of software or a special app isn’t necessary. Being a German company, we handle issues of data protection with great care and sensibility. The following clip shows additional benefits of signing electronically with inSign.
elektronische Signatur inSign für die alltägliche Arbeit
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We keep your data safe

German company

Locations in Freising, Munich and Cologne

Servers based in Germany

Security, data protection and performance

Strong encryption

AES-256 and RSA-2048

inSign elektronische Unterschrift Made in Germany
Trust in

High standards in data protection
Signature verifiability
eIDAS-compliant and TÜV-certifiied

inSign made and hosted in germany - TÜV certified

Product variants

You can choose between:
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* Price per user plus VAT at yearly rates (monthly rates 26.90€), minimum contract term 1 year
* Price per user plus VAT at yearly rates (monthly rates 26.90€), minimum contract term 1 year
Electronic signature inSign

Why inSign is the optimum choice

High market acceptance

Our digital signature solution has been used by well over 10 million users in many European countries, and the number keeps growing every day.

Continuos further de­velopment

Our soft­ware for electronic signa­tures is under continuous further develop­ment. This includes regular re­leases, function en­hancements and UI/UX im­prove­ments.

Tried and tested quality

inSign has been officially tested and certified by the Federal In­spection Association (TÜV) re­garding security and function­ality. As a German com­pany with servers in Germany, we are am­bassadors of premium quality.

inSign enterprise
Maximum data security

You de­cide where your data is to be hosted. Whether local installation (on-premises) or software as a service (SaaS) – you are free to choose.

Demand oriented licence models

We also offer flexible licence options – ideally adapted to your in­dividual require­ments.

Individual and easy to integrate

You can use inSign as a stand-alone solution or integrated soft­ware. We also offer our customers an offline version for Windows as well as hybrid variants.

FAQ – Key issues about our digital signature

Are inSign electronic signatures legally compliant?
The electronic signature can be used for legal purposes in all European Union countries and cannot be rejected as evidence. inSign supports all signature types (SES, AES, QES). By default, when using inSign, an advanced electronic signature (AES) is created in compliance with eIDAS. Likewise, sensitive topics such as data protection, transmission and storage are top priorities for us (in particular with regard to the change in the law concerning Privacy Shield).

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What documents can be signed with inSign?
You can sign and fill in any kind of PDF documents with our signature software. Whether invoices, order confirmations or contracts – signing is easy thanks to inSign. With the inSign Word Add-in, Word documents can also be automatically converted into a PDF, making it very easy to sign them electronically. More information
Can you sign directly on the computer?
An advanced electronic signature can be placed on any touch-sensitive device. On a stationary computer without a touch screen, the signature can be redirected to a smartphone screen.

Simple and qualified signatures are placed directly on the computer.

No special hardware (signature card, card reader etc.) or app is required. inSign is a web application and runs in any current browser.

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Why can I use the electronic signature without worries?
The inSign standard signature (AES) was examined by an officially qualified handwriting expert and evaluated positively in an expert assessment. The signature is GDPR- and eIDAS compliant.

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What sets inSign apart from competitors?
Our company is 100% German with servers in Germany. Data protection and legal compliance are important topics in Germany. Hence, we treat them with extreme sensitivity.

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Our customers rely on inSign
Made in Germany
Christian BichelProject Manager
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The flexible application possibilities of inSign inspire us.
Christian GeierCEO
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Satisfaction amongst users is really enormous.
Tillmann RunkelSoftware Architect
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The integration was child's play with the great documentation and the conclusive Rest-API.
Marco BierbauerSales manager
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Out of all digital signature software, I find inSign by far the best and easiest to use.
Simon SantlInsurance specialist
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I am very happy with the programme.
Roland BonimeierHead of Sales
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With inSign you have created an excellent tool, I am absolutely convinced by it.
Andreas ReddemannBroker
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Not many things excite me but your tool did. Brilliant.
Susann VogelFinancial advisor
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It works well and our clients are really happy. Such a good idea and simple implementation.
Dr. Volker RuntemundTax consultant, legal and specialist lawyer
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I am very satisfied with the electronic signature solution inSign as all processes get completed a lot faster now.
David LixlTreasury Manager
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We have seen a significant reduction in processing times.
Jan GurycaData protection officer, insurance salesman
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I enjoy working with inSign and would not want to miss this process. I would recommend inSign to anyone.
Stefan LettmeierManaging Board
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When I experienced inSign for the first time, I quickly realized that this could be the final building block in our processes for opening current and share deposit accounts.
Sylvia SchöllerOffice Manager / Sales Assistant
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Especially in this day and age, inSign is a huge asset both for our customers as well as ourselves. The client feels well looked after without putting in any extra work. inSign is easy to handle and for us, too, there are only benefits including enormous time savings.
Anika LaubnerForeman of horse business
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Your system is awesome and has saved me plenty of work. I would happily recommend you.
Frank SanderManaging Director
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Thank you so much for this innovative solution offered by iS2. One quickly gets used to good and effective results.
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