This article explains how to use Java libraries such as Apache POI, PDFBox, and EasyExcel to read Excel, DOC/DOCX, PDF, and plain text files, providing complete code examples, required Maven dependencies, and step‑by‑step usage instructions for each file type.
This article demonstrates multiple methods to add text or image watermarks to PDF documents in a Spring Boot application, covering Java libraries such as Apache PDFBox, iText, Ghostscript command line, Free Spire.PDF, and Aspose.PDF, with code examples and usage instructions.
This article walks through multiple ways to add text or image watermarks to PDF files in a Spring Boot application, covering Apache PDFBox, iText, Ghostscript command‑line, Free Spire.PDF, and Aspose.PDF, with Maven dependencies, step‑by‑step code examples, and practical tips for preserving original documents.
This article demonstrates multiple ways to add text or image watermarks to PDF documents within a Spring Boot application, covering Apache PDFBox, iText, Ghostscript, Free Spire.PDF, and Aspose.PDF, and provides complete Maven dependencies and code examples for each method.
