Evaluate Aspose.Slides
Aspose.Slides Evaluation
You can download Aspose.Slides for evaluation. The evaluation package is the same as the purchased package; it becomes licensed after you add a few lines of code to apply the license.
Without a license, Aspose.Slides provides its full functionality in evaluation mode, with two limitations: it adds an evaluation watermark text box to every slide of each presentation it saves, and text that your code reads from a presentation is truncated to its first few characters, followed by a notice about the evaluation limitation. Text that your code writes is saved in full.
Note
If you want to test Aspose.Slides without evaluation version limitations, you can request a 30 Day Temporary License. Please refer to How to get a Temporary License? for more information.Install the Evaluation Package
dotnet add package Aspose.Slides.NET
On Linux and macOS, you can use the Aspose.Slides.NET6.CrossPlatform package instead; see Installation.
Apply a License
These are the “few lines of code” that turn the evaluation package into a licensed one. Apply the
license once at application start-up, before any Presentation object is created — a presentation
constructed earlier keeps the evaluation watermark.
using Aspose.Slides;
var license = new License();
license.SetLicense("Aspose.Slides.NET.lic");
SetLicense also accepts a Stream, which is the better option when the license ships as an embedded
resource rather than a file on disk. If the path is wrong or the file has expired the call throws, so
failures surface immediately at start-up instead of silently reverting to evaluation mode.
Once the license is applied, saved presentations no longer carry the watermark, and text is read in full.
FAQ
Can I test multiple presentations in parallel across different threads in evaluation mode?
Yes. You can process different documents in parallel; you should not share the same presentation object across threads. Evaluation mode does not affect this.
Do I need to install Microsoft PowerPoint to evaluate the library on a server or in CI?
No. Aspose.Slides is a standalone engine and does not require PowerPoint installed for either evaluation or production.
Can I fully test conversion of PPT/PPTX to PDF and images in evaluation mode?
Yes. The converters work; the output will include a watermark.
Can I use a temporary license for load testing without a watermark?
Yes. A 30-day temporary license removes evaluation-mode limitations and allows testing without a watermark.