Spire.Presentation 11.3.1 optimized the conversion from PowerPoint to PDF

Spire.Presentation 11.3.1 optimized the conversion from PowerPoint to PDF

2026-03-18 09:29:02

We're pleased to announce the release of Spire.Presentation 11.3.1. This version optimized the conversion functionality from PowerPoint to PDF. Meanwhile, some issues that occurred when retrieving shape shadows, loading 3D animations, and converting documents have also been successfully fixed. More details are listed below.

Here is a list of changes made in this release

Category ID Description
Bug Fix SPIREPPT-2728 Fixes the issue where shape shadow effects could not be retrieved.
Bug Fix SPIREPPT-3072 Fixes the issue where text offset occurred when converting PowerPoint to PDF.
Bug Fix SPIREPPT-3081 Fixes the issue where the application threw a "Property not found" exception when loading a PowerPoint containing 3D animations.
Bug Fix SPIREPPT-3085 Fixes the issue where the application threw an "Object reference not set to an instance of an object" exception when converting PowerPoint to PDF.
Click the link to download Spire.Presentation 11.3.1:
More information of Spire.Presentation new release or hotfix: