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....watermark to PDF in Java 1 Add Line Circle annotations in PDF 1 add notes...Zap to merge documents 1 crop circle image 1 crop gif 1 crop image...