Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms....Presentation ( FilePath + "Find and Replace.pptx" ); //プレゼンテーション内のすべてのテキストボックスを取得...) //置換対象のテキストを検索 if ( port . Text . Contains ( strToFind )) //既存のテキストを新しいテキストに置換...