Simple signature processes
Digital signature for your business

inSign electronic signature
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Request signatures is easy as pie

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

Makes your business
100% sexy

Makes your customers and partners satisfied


Faster turnaround times
- 2 days instead of 2 weeks -

Individual and easy to integrate

Continuous further development

Electronic signature:
As simple as writing an email!
Sign PDF electronically
electronic signature
Signed PDF document
Fill in
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
Have fun
A signature that’s fun
A signature that’s fun

Our USPs - what do we do better than others?

High data protection standards

Our company is 100% German also with servers in Germany. We comply with high standards of data protection and legal compliance; these are topics we treat with the highest sensitivity.

Market leader in Germany

inSign has already been on the market for 10 years and is Germany's market leader in many sectors.

Document protection after the first signature

After the first signatory has signed, changing the document is no longer possible, i.e. all contractual partners sign the same version of the document.

Confidentiality § 203 StGB

Both the employees of inSign GmbH and those of the relevant sub­contractors used by it shall be obliged to comply with the regulations of § 203 StGB.

Different signature types in one document

inSign offers simple (SES), advanced (AES) and qualified electronic signatures (QES) according to eIDAS. The signature method can be specified depending on the usage scenario and also mixed in one document.

Placing optical signatures in the document

The process creator specifies the expected signatures including their positions thereby preventing signatories from signing in the wrong place. Furthermore, PDF documents can be filled with various form fields.

Secure signature solution: tested & certified

German company

Location in Freising

Servers based in Germany

Security, data protection and performance

Strong encryption

AES-256 and RSA-2048

inSign electronic signature made in Germany
Trust in
High standards in data protection
Signature verifiability
eIDAS-compliant and TÜV-certifiied
In accordance with ZertES

Product variants

Which signature solution is right for you?
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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

FAQ – Key issues about our digital signature

The electronic signature can be used for legal purposes in all European Union countries and cannot be rejected as evidence. inSign supports the signature types simple electronic signature (SES), advanced electronic signature (AES) and qualfied electronic signature (QES) in accordance with both eIDAS and ZertES.

More about legal and data protection
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.

Further use cases
Yes, with inSign signatures be made on the computer by means of keyboard input or qualified certificate (QES). For the handwritten electronic signature, a touch-sensitive screen (smartphone, tablet, etc.) is required. If a computer does not have a touch screen, the signature process can be redirected to a smartphone, for example.

All about features and advantages of inSign
inSign creates an audit report (transaction log) of the complete signature workflow. This, together with the information depending on the signature method, serves as proof in the event of any disputes. The evidential value of the biometric data in the handwritten signature of inSign was examined by an qualified handwriting expert and positively assessed in an expert opinion. All inSign signatures are GDPR and eIDAS compliant and 100% secure.

More about advanced and qualified signature
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.
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