This article contains information for .NET developing using the evaluation version of VintaSoft Imaging .NET SDK.
If you need information about ASP.NET developing using the evaluation version of VintaSoft Imaging .NET SDK, please read this article.

General information about evaluation version of VintaSoft Imaging .NET SDK

The evaluation version of VintaSoft Imaging .NET SDK allows you to test the SDK functionality and so check if it suits your requirements.

The evaluation version allows to develop .NET applications for test purposes only.

The evaluation version does NOT allow to use the developed test applications in production or for commercial purposes.

The evaluation version works during 30 days of evaluation period. For activating the evaluation period you should request the evaluation license.

The evaluation version has several minor limitations of use listed below.

It's prohibited to rent, lease, sell, modify, decompile, disassemble, crack, otherwise reverse engineer the evaluation version.

If you installed the evaluation version of VintaSoft Imaging .NET SDK to your Windows computer, you can request the evaluation license file ("C:\Users\%USERNAME%\AppData\Local\VintaSoft\Imaging .NET\VSImagingNet14_0.Windows.Evaluation.lic") and SDK will automatically get the evaluation license from evaluation license file when your .NET desktop application is executed on your computer.

If you did not installed the evaluation version of VintaSoft Imaging .NET SDK to your Windows computer (for example, you downloaded VintaSoft DLLs from www.nuget.org), you need to embed the evaluation license into source codes of your .NET application.

If you want to deploy developed .NET application to other computer, you need to embed the evaluation license into source codes of your .NET application.

Request an evaluation license file

If you installed the evaluation version of VintaSoft Imaging .NET SDK to your Windows computer, the installer will run the Evaluation License Manager (file "<SdkInstallPath>\VintaSoft\Imaging .NET 14.0\VSImagingNetEvaluationLicenseManager.exe") at the end of SDK installation process. Also you can run the Evaluation License Manager manually at any time.

If you want to get the evaluation license file, you need to do the following steps:

1. Run the Evaluation License Manager:
   
2. If you do not have account on VintaSoft User Portal, click the "Create account" link and you will be redirected to the web site https://myaccount.vintasoft.com.
3. Specify email and password for your account on VintaSoft User Portal and click the "Request 30 days evaluation license" button.
4. The evaluation license will be saved to the file "C:\Users\%USERNAME%\AppData\Local\VintaSoft\Imaging .NET\VSImagingNet14_0.Windows.Evaluation.lic" if request was successful.

Request C#/VB.NET code to embed the evaluation license into source codes of your .NET application

If you need C#/VB.NET code to embed the evaluation license into source codes of your .NET application, you need to do the following steps:

1. Go to VintaSoft User Portal at https://myaccount.vintasoft.com.
2. Click "Register account now" link if you do not have account in VintaSoft User Portal.
3. Login to VintaSoft User Portal.
4. Select "View Evaluation Licenses" tab.
5. Click "Request license for Windows/Linux/macOS development" button in "Request evaluation license for VintaSoft Imaging .NET SDK" section if you do not requested the evaluation license earlier.
6. Click "Get C#/VB.NET code for SDK registration" button at the right side of information about evaluation license => Text with C#/VB.NET code for SDK registration will be copied to the clipboard.
7. Insert C#/VB.NET code from clipboard at the start of your .NET code.

Limitations of evaluation version.

Evaluation version has the following limitations:

• The evaluation version adds watermarks to the image viewers.
• The evaluation version adds watermarks to all printed and saved images.
• The evaluation version does not allow to work with TIFF file, which size is more than 2 Gb.
• The evaluation version does not allow to change some tags in PDF document.
• The evaluation version allows to apply only 40-bit crypto algorithms for securing PDF document.
• The evaluation version allows to add several digital signatures to PDF page but only the last signature will be valid because the evaluation version adds watermark to PDF page.
• The evaluation version adds watermark to rendered PDF, DOCX and XLSX page.
• The evaluation version adds watermark to decoded JBIG2, JPEG2000, DICOM and RAW image.
• The evaluation version makes all existing digital signatures of PDF document invalid if new digital signature is added to the document.
• The evaluation version does not allow to use MMR compression in JBIG2 image.
• The evaluation version does not allow to create JPEG2000 image with several layers or tiles.
• The evaluation version does not allow to delete or move sheet in the spreadsheet (XLSX) document.
• The evaluation version adds new sheet with watermark to the opened spreadsheet (XLSX) document.
• The evaluation version of spreadsheet editor allows to edit only the first sheet in the spreadsheet (XLSX) document.