Spire.Presentation 11.2.1 enhances the conversion from PowerPoint to PDF
2026-02-09 03:32:58
We're glad to announce the release of Spire. Presentation 11.2.1. This version mainly fixes three issues that arose when converting PowerPoint to PDF and SVG. Check below for the details. Here is a list of changes made in this release Category ID Description Bug Fix SPIREPPT-2841 Fixed the issue where rendering effects were inconsistent when converting PowerPoint to SVG. Bug Fix SPIREPPT-3073 Fixed the issue that extraneous log information was generated when converting PowerPoint to PDF. Bug Fix SPIREPPT-3073 Fixed the issue that charts were missing when converting PowerPoint to PDF. Click the link to download Spire.Presentation 11.2.1: https://www.e-iceblue.com/Download/download-presentation-for-net-now.html More…
Spire.Presentation 11.1.1 supports regex-based text highlighting
2026-01-22 06:38:03
We’re pleased to announce the release of Spire.Presentation 11.1.1. This version introduces support for highlighting text based on regular expression matches. In addition, several issues related to PPTX-to-PDF conversion have been fixed, including content loss and default font settings not being applied. More details are listed below. Here is a list of changes made in this release Category ID Description New feature Added support for highlighting text based on regular expression matches. // Simple word matching Regex regex = new Regex(@"\bhello\b"); IAutoShape shape = (IAutoShape)ppt.Slides[0].Shapes[0]; TextHighLightingOptions options = new TextHighLightingOptions(); shape.TextFrame.HighLightRegex(regex, Color.Red, options); New feature SPIREPPT-3051 Fixed an issue where…
Spire.Presentation 10.12 supports compressing images
2025-12-29 07:08:25
We're glad to announce the release of Spire.Presentation 10.12. This version supports compressing images and configuring output image DPI when converting slides to images. Additionally, several issues that arose when converting PPTX to PDF and loading PowerPoint documents have been successfully resolved. Check below for the details. Here is a list of changes made in this release Category ID Description New Feature SPIREPPT-2994 Added support for compressing images. Presentation presentation = new Presentation(); presentation.LoadFromFile(inputFile); foreach (ISlide slide in presentation.Slides) { foreach (Spire.Presentation.IShape shape in slide.Shapes) { if (shape is SlidePicture) { SlidePicture ps = shape as SlidePicture; // Compress the…
Spire.Presentation 10.11.4 enhances the conversion from PowerPoint to PDF
2025-11-27 06:41:41
We're pleased to announce the release of Spire.Presentation 10.11.4. This version mainly focuses on improving conversion accuracy when exporting PowerPoint and ODP files to PDF. Several issues—such as incorrect image effects, inconsistent layout, and missing footer content—have been successfully resolved. More details are listed below. Here is a list of changes made in this release Category ID Description Bug SPIREPPT-2873, SPIREPPT-2888 Fixes the issue where image effects were displayed incorrectly when converting PowerPoint to PDF. Bug SPIREPPT-2951 Fixes the issue where layout became inconsistent when converting PowerPoint to PDF. Bug SPIREPPT-3012 Fixes the issue where footer content was missing when…
Spire.Presentation 10.10.7 optimizes saving time when creating PowerPoint using templates
2025-10-29 09:15:59
We're pleased to announce the release of Spire.Presentation 10.10.7. This version optimizes saving time when creating PowerPoint presentations using templates. Meanwhile, it adds support for setting table transparency and includes adjustments and several bug fixes that improve the overall performance and stability of the product. More details are listed below. Here is a list of changes made in this release Category ID Description Adjustment — Adjusted the usage of the AddDigitalSignature method. Presentation ppt = new Presentation(); ppt.LoadFromFile("in.pptx"); //Add a digital signature,The parameters: string certificatePath, string certificatePassword, string comments, DateTime signTime ppt.AddDigitalSignature("test.pfx", "e-iceblue", "111", DateTime.Now); ppt.SaveToFile("result.pptx", Spire.Presentation.FileFormat.Pptx2016); ppt.Dispose(); New feature…
Spire.Presentation 10.10.1 supports setting fade-in or fade-out duration of audio
2025-10-21 03:55:59
We’re pleased to announce the release of Spire.Presentation 10.10.1. This update introduces features for setting fade-in and fade-out durations for audio, as well as the ability to crop audio. More details are given below. Here is a list of changes made in this release Category ID Description New feature SPIREPPT-2988 Added support for setting the fade-in or fade-out duration of audio. // New Append Audio Presentation pres = new Presentation(); FileStream from_stream = File.OpenRead(inputFile); RectangleF audioRect = new RectangleF(50, 50, 100, 100); IAudio audio = pres.Slides[0].Shapes.AppendAudioMedia(from_stream, audioRect); // Set the duration of the starting fade for 13s audio.FadeInDuration = 13000f;…
Spire.Presentation 10.9.3 fixes an issue where documents failed to open
2025-09-30 03:15:23
We're glad to announce the release of Spire.Presentation 10.9.3. This version fixes an issue where documents failed to open. Check below for the details. Here is a list of changes made in this release Category ID Description Bug SPIREPPT-3008 Fixed an issue where documents failed to open when using netstandard libraries on .NET 9.0. Click the link to download Spire.Presentation 10.9.3: https://www.e-iceblue.com/Download/download-presentation-for-net-now.html More information of Spire.Presentation new release or hotfix: https://www.e-iceblue.com/forum/spire-presentation-new-release-or-hotfix-t4736.html
Spire.Presentation 10.9.1 fixes the issue of creating an extra slide when inserting SVG into Shape
2025-09-23 07:22:13
We’re pleased to announce the release of Spire.Presentation 10.9.1. In this version, an issue has been fixed where a new slide was accidentally created when inserting an SVG into a specified shape in a multi-page PowerPoint presentation. Please see the details below. Here is a list of changes made in this release Category ID Description Bug SPIREPPT-2976 Fixes the issue of accidentally creating a new slide when inserting an SVG into a specified shape in a multi-page PowerPoint presentation. Click the link below to download Spire.Presentation 10.9.1: https://www.e-iceblue.com/Download/download-presentation-for-net-now.html More information of Spire.Presentation new release or hotfix: https://www.e-iceblue.com/forum/spire-presentation-new-release-or-hotfix-t4736.html
