C#/VB.NET – Convert PPT(X) to Images

Compared with PowerPoint documents, images are more user friendly. Because most portable devices support browsing pictures instead of PowerPoint files. Apart from that, you would also choose to convert your PowerPoint document to images to prevent modification. In this article, I am going to show you how to convert PowerPoint (PPT and PPTX) to PNG …

C#/VB.NET – Set or Change Font Styles in PowerPoint

Applying appropriate font styles on slides is a critical factor to the aesthetic of your PowerPoint document. In this article, I am going to introduce how to set font styles (including font name, font size, text color, bold, italic, underline and strike through) when creating a new PowerPoint document from scratch, as well as how …

C#/VB.NET – How to Print PowerPoint Documents

MS PowerPoint is the most commonly used presentation document that often needs to be printed to paper. In this article, I am going to introduce how to silently print PowerPoint documents, how to send documents to a virtual printer, and how to set printing options like printing in grayscale using Spire.Presentation with C# and VB.NET. …

C#/VB.NET – Extract Text and Images from PowerPoint Documents

When there are beautiful pictures in PowerPoint that you want to use as your own material, or when you want to quote text from a document, you can extract the pictures and text from the document and save them in image format files or txt format file respectively. This article will introduce how to programmatically …

C#/VB.NET – Make Text Transparent in PowerPoint

We often see this design in PowerPoint: the text on an image is made transparent, so that the image can show through the letters. In this article, I am going to introduce how to make text transparent programmatically using Free Spire.Presentation for .NET. INSTALL SPIRE.PRESENTATION.DLL Download the latest version of Free Spire.Presentation from this link, and …