signotec signoPAD-API (Download)

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Comments (15 in total)
Utilizar dispositivo en c# sig100

tengo un dispositivo sig100 y quiero utilizarlo desarrollando una app en c#, cuales son las referencias y donde encontrarlo para poder utilizar todos sus metodos.

von Edi Espinoza | 24.09.2019 00:04

Good day, you will find everything here:
Please refer to the signoPAD-API.

Technical Support

Can a user on network be notified when a signo pad enters into config mode?

So to keep it simple:

A user enters into config mode for whatever reason. Local IT team wants to be pinged or notified somehow that said signo pad has entered config mode via email, or some s [more]

von Lex G | 21.06.2019 21:04

Hello, for technical support please use our form here:

This section is designed for short comments and questions. Complex issues should be resolved directly with support. Thank you for your understanding.


We want to develope a Xamarin application that requires to sign PDF documents with the biometrics data and without internet connection.

Is possible integrate your API in our solution to meet the requirements?


von Felix Mondelo | 19.03.2019 17:17

yes, we have such an SDK. It is the signoAPI which can be used with Xamarin. We will contact you via e-mail.


hi, i just want to know the concept of sign,
so i have pdf to sign a signature.
after i try all the button it's all lead to saving it as image. (whether just a signature or signature with background) with resize background.

or do i have to save only the signature and m [more]

von david | 27.04.2018 09:19

Hello, the signoPAD-API is for the communication/interaction with the signature pad. If you would like to sign a PDF document a different SDK is needed: The signoAPI. This is not free of charge. If you want a out of the box solution we recommend signoSign/2.

Web-based Application

Good day team, I'd like to know if this works in a Web-based application, I have a .Net Core 2.0 MVC application here, I want to know if I can use it. Thanks

von Lawrence Lolwana | 19.03.2018 09:00

The signoPAD-API consists of local components only. For web-based integration of signature pads, please take a look at our “WebSocket Pad Server”. This interface allows you to integrate signature pads via WebSocket protocol.

Thickness of the signature

Hi, can I change the thickness of the signature lines?

von Joe Johnson | 24.08.2017 10:43

Please refer to the signoPAD-API documentation and search for penWidth. You can choose between a fix width in pixel or dynamic width depending on the pressure.

Save Sign as Image


We would like to use your device, with C#.
My question is: Can we get the sign as image? I mean, we would like to display the sign eg. on a printed document.

Thank you,
Bence Madarász

von Bence Madarász | 08.07.2017 12:56

Hi, of course this is possible. With the signoPAD-API you can control the signature pad (display images, texts etc.) and also capture the signature in different variants and formats, (e.g. JPG,PNG,BMP, TIFF). Also, the API includes a demo application with source code fo [more]

How to combine api with code

Hi, I am new to the Signotec pad and but I want to import this sign pad api into my window application ( made by Any idea for me to process next step?

von Levi Hi | 05.07.2017 11:53

Hi Levi,
if you download the API, it will include an extensive documentation and source code examples .You will also find an example for VB.NET there.

Erro DisplaySaveImageAsFile

use code
int nResult = stPad.DisplaySaveImageAsFile("C:/Image.tif",1, 0);
if (nResult < 0)
MessageBox.Show(String.Format("Error {0}", nResult));

in error
Argument 2: cannot convert from 'int' to 'System.Drawing.Imaging.ImageFormat'

von Saeed | 17.04.2017 19:43

Hi, you make some basic faults. First of all, we don't know which lib you are using, but I guess STPadLibNet.dll. If you check the documentation you will see that the definition is:

void DisplaySaveImageAsFile(string path, System.Drawing.Imaging.ImageFormat fileType, [more]

I would like to know if it is compatible with MAC OSx

I would like to know if it is compatible with MAC OS x

von andrej | 24.10.2016 12:36

Hi Andrej, the signoPAD-API is available for Windows and as Native Java version. We do not have a Mac OSX version. For further explanations, please contact our support.

Signature Verification using existing templates

I have a signature templates for each user, 3 for each user stored in my database and i need a system to read from scanned image and compare it with those templates, does your software help me with this ?

von Hossam Nabil | 07.09.2016 12:44

For such a purpose you need our Biometric API. This is able to compare scanned signature images (min. 200 dpi and losless compression) and dynamic signatures from our signature pads. Please contact for more information.

Disabling cropping

The omega tablet always crops the top and bottom of the signature area white space. Is there any way to get the white space preserved like the 0x0008 bitmask does for the SignatureSaveAsStreamEx method, or do I need to capture the whole image and do my own cropping to a [more]

von Alec | 14.07.2015 05:45

First you have to create an empty bitmap of 640 x 480 pixels for example. Then you call the SignatureSaveAsStreamEx method to get the completely cropped image from the signature and copy this image to the desired location of the empty bitmap. The reason behind is the as [more]

Biometric Data

Hi, we are already able to capture encrypted signatures with the JAVA api, but after the decryption process we have only a binary raw data:


How can we convert this raw data to ISO-19794-7 format or something processable like (x,y,p,t).?


von Manuel Castro Paliza | 27.05.2015 14:05

Hi, we have a library which converts the binary data into the ISO-19794-7 Format. Please contact us via

is this API free


we are looking for Omega pads, let us know if this API is free

von Nabeel Noorullah | 01.09.2014 08:18

Yes, this API is free of charge. You can integrate it and distribute it without any costs. Updateds and new versions comes for free as well.


Hi, Do you ave an API or SDK in C++ for Linux Red Had?

von Santiago | 29.08.2014 22:39

Hi, for Linux we provide our native signoPAD-API JAVA SDK. A C++ SDK is available please contact