Licensing

Evaluation Version Limitations

You can download an evaluation version of Aspose.Imaging for Python via .NET from the PyPi. The evaluation version provides the same features as the fully licensed version of the component with a couple of restrictions. When you buy Aspose.Imaging, simply applying the license removes any restrictions from the installed evaluation. The evaluation version of Aspose.Imaging for Python via .NET provides full product functionality, with only two limitations:

  • A watermark on each image: Any image you save, modify or export has a watermark reading “Evaluation Only. Created with Aspose.Imaging. Copyright 2010-2023 Aspose Pty Ltd.”. Small images, where the full watermark won’t fit, has two diagonal lines across the image instead.
  • No support for core drawing functionality: In evaluation mode, image pixels cannot be loaded or saved to the image. To draw images, use the advanced drawing functionality instead. This limitation affects functionality that depends on the core drawing functionality. Aspose.Imaging for Python via .NET allows you to register your own file format. However, this feature depends on the core drawing functionality so it makes no sense to use it in evaluation mode because you can’t change the content of those files.

If you want to test Aspose.Imaging for Python via .NET without the evaluation limitations, request a 30-day temporary license. Please refer to How to get a Temporary License? for more information.

About the License File

Once you are happy with your evaluation of Aspose.Imaging, you can purchase a license on Aspose website. Make yourself familiar with the different subscription types offered. If you have any questions, do not hesitate to contact Aspose’s sales team. Every Aspose license comes with a one-year subscription for software upgrades. After the first year, renew your subscriptions to continue getting the latest features and fixes. Technical support is free and unlimited and is provided to both licensed and evaluation users through our Support Forums. The license is an XML file that contains details such as the product name, number of licensed developers, subscription expiry date and so on. The file is digitally signed, so do not modify it: even inadvertently adding an extra line break invalidates the file. After buying Aspose.Imaging, you need to apply the license before you create, edit or otherwise manipulate images. If you forget to apply the license, any output images will have an evaluation watermark. You only need to set the license once per application or process that you develop.

Where to Apply a License in your Application

Where you apply a license depends on the type of application you are developing. Follow these simple rules:

  • Only apply the license once per application domain. Calling License.set_license multiple times is not harmful but wastes processor time.
  • Apply the license before calling any Aspose.Imaging for Python via .NET classes.
  • Call License.set_license in the startup code, before using any Aspose.Imaging for Python via .NET classes.

Applying a License using a File or a Stream

You can easily download an evaluation version of Aspose.Imaging from PyPi download page. The evaluation version provides absolutely the same capabilities as the licensed version of Aspose.Imaging. Furthermore, evaluation version simply becomes licensed when you purchase a license and add a couple of lines of code to apply the license.

If you want to avoid working with evaluation limitations, you need to set a license before using Aspose.Imaging. You only need to set a license once per application (or process).

Applying a license from a file

The easiest way to apply a license is to put the license file in the same folder with your code that used Aspose.Imaging. Then you can specify the file name in the code instead of a full path.

When you call the set_license method, the license name should be same as that of your license file name. For example, if you change the license file name to “Aspose.Imaging.lic.xml” you should use this license name for the set_license method.

Applying a license using a stream

It is also possible to load a license from a stream as demonstrated below.

Installation Metered Licensing