Carina

 Multimedia information can be presented conveniently by using PowerPoint, and the information form is multimedia and expressive. But it is inevitable that in some cases we will need to convert PowerPoint to HTML format. Because HTML documents can be independent of various operating system platforms (such as Unix, Windows, etc.). And it can add content such as pictures, sounds, animations, videos, etc., and can also jump from one file to another, and connect with files on hosts around the world. Through HTML, rich and colorful design styles can be displayed, jumps between pages can be realized, and multimedia effects can be displayed. This article will introduce in detail how to convert PowerPoint to HTML through C#/VB.NET code. Convert a PowerPoint Presentation to HTML Convert a Specific PowerPoint Slide to HTML Programming Environment   In this test, Free Spire.Presentation for .NET is introduced into the program. The Spire.Presentation.dll file can be referenced by...

 In daily work, we encrypt important documents and set user access permissions, which are not accessible to other external personnel. Only users who have obtained this permission are eligible to open documents. In addition, restricting users' access greatly prevents those who intentionally tamper with or copy the content, thereby improving the security of the document. At the same time, another major role of document encryption is to prevent loss, as there may be situations where employees intentionally or unintentionally delete documents during business trips or resignations, resulting in document loss and causing a certain impact on the company's business and image. So how can we encrypt PDF documents? How to decrypt a document after encrypting it? The following article provides a detailed introduction to how to programmatically encrypt or decrypt PDF documents through Java code. Encrypt a PDF File with Password Remove Password to Decrypt a PDF File Programming Environm...

The page number allows for a clear understanding of the total number of pages, a quick search for the paragraph you want, and printing without blurring the top, middle, and bottom. Many people choose PDF for document saving when using office software, because PDF does not cause garbled code or even formatting changes after saving. After successfully adding page numbers to the PDF, the bottom of each PDF page will display page numbers, which can provide a more detailed and clear understanding of the relevance of the document and the specific location of the content. This also facilitates our subsequent work and greatly improves work efficiency in the workplace. Today's article will introduce how to programmatically add page numbers to PDF documents through Java code. Please read the following for details. 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 follow...