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Showing posts from March, 2023

How to insert formulas into PowerPoint slides through Java code

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  Whether you are a student, teacher, or worker, it is likely that you need to insert some formulas when creating PowerPoint documents. The inserted formula can effectively provide theoretical support for argument and calculation of the slide content. This article will show you how to programmatically insert formulas into PowerPoint slides through Java code. The following is my compilation of methods and specific steps for inserting formulas, with Java code attached for your reference. Programming Environment First, you’re required to add the Spire. Presentation .jar file as a dependency in your Java program. The JAR file can be downloaded from this link. Method 1: Introduced manually. Download Free Spire. Presentation for Java locally, unzip it, and find the Spire. Presentation .jar file in the lib folder. Open the following interface in IDEA, and import the jar file in the local path into the Java program: Method 2: If you use Maven , you can easily import the JAR ...

How to Convert PDF to Images in Java

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PDF files and image files are two completely different formats, but sometimes there is a need to convert the two formats to each other. How do you solve the problem of converting PDF files to image files at work? Is the method you use simple and convenient? If it is very troublesome, you might as well learn how to share this article. This article will introduce how to quickly and efficiently convert PDF to image format through a Java application. Convert a Whole PDF Document to Multiple Images Convert a Particular PDF Page to an Image Programming Environment Method 1: Introduced manually. Download Free Spire.PDF for Java locally, unzip it, and find the Spire.PDF.jar file in the lib folder. Open the following interface in IDEA, and import the jar file in the local path into the Java program: If you use Maven , you can easily import the JAR file in your application by adding the following code to your project’s pom.xml file. <repositories>     <repos...

How to Extract Images from PowerPoint Presentations in C#/VB.NET

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 PowerPoint is an application software for making slides (presentations), and each slide can contain various information such as text, graphics, graphics, tables, sounds, and images. Sometimes we find that there are some exquisite pictures in the PPT, or we want to save the pictures in the PPT for other reasons. But if the PowerPoint document contains a lot of pictures, saving them one by one will take too much time and effort. So, is there any way to extract pictures from PowerPoint efficiently and conveniently? In this post, you will learn how to programmatically extract pictures from PowerPoint documents. The following are the steps and methods I sorted out, and the C#/VB.NET code is attached for your reference. Extract Images from an Entire Presentation  Extract Images from a Specific Presentation Slide  Programming Environment   In this test, Free Spire. Presentation for .NET is introduced into the program. The Spire. Presentation .dll file can be ref...