C# .NET Core, Java, Python, PHP, Node.js, Python, JavaScript, C++, Android, Swift, Go, Ruby, Dart, Perl APIs to create and convert PDF, Word, Excel, PowerPoint, email, JPG, image, ZIP, and other formats on Windows, Linux, macOS & Android....Find and Replace text in PDF document. You can encrypt PDF files...such as rows, columns, cells, text, data, images, hyperlinks etc...