Excel to JSON Conversion in Java

This guide shows Java developers how to convert Excel spreadsheets to JSON using Conholdate.Total for Java SDK. It covers prerequisites, Maven installation, step-by-step implementation, a full code example, and conversion options like date and number formatting.

Create Visio Diagram in Java

This tutorial walks Java developers through generating Visio diagrams using Conholdate.Total for Java. You will learn to set up the SDK, add a shape from a master template, position it, attach text, apply a text style, and export the result as a VSDX file for Microsoft Visio.

Create HTML Files in Java

This tutorial shows Java developers how to create HTML files in Java with Conholdate.Total for Java. It covers SDK setup, creating an HTMLDocument instance, adding content nodes, and saving the resulting HTML file. Tips are provided.

Create Gantt Chart in Java

Learn to create a Gantt Chart in Java with Conholdate.Total for Java. This guide walks you through populating task data, building a stacked bar chart that behaves like a Gantt chart, and exporting the workbook to Excel. See a complete code example and get tips for performance and licensing.

Add Watermark to PDF in Java

This tutorial shows Java developers how to add Watermark to PDF in Java with Conholdate.Total for Java. Follow the complete code example, learn each line, set up Maven dependencies, and tweak opacity, rotation, and alignment to create PDF watermarks.

Convert Onenote to Image in Java

This tutorial shows Java developers how to convert OneNote files to PNG or JPEG images using Conholdate.Total for Java. It covers Maven setup, a step‑by‑step implementation with parallel page conversion, in‑memory processing, and performance tips.

Insert Watermark in Excel using Java

This tutorial shows Java developers how to insert a watermark into XLSX or XLS workbooks using Conholdate.Total for Java. You will learn to set font, opacity, rotation and alignment, handle large files with streaming, and save the workbook with an API call.

Create Charts in Word Documents using Java

This tutorial shows Java developers how to generate an example, learn the code segment, configure chart properties, and get tips for installing SDK and data series.

Add Text to PDF in Java

Learn how to add text to PDF in Java with Conholdate.Total for Java. This guide shows SDK installation, building a TextParagraph with TextBuilder, font configuration, and saving the updated PDF, providing a clear step-by-step code example and best practices.

Convert Excel to Image in Java

This tutorial shows Java developers how to convert Excel to image using Conholdate.Total for Java. You will learn to load a workbook, access a worksheet, configure image rendering options, and generate JPEG images ready for reporting or UI display.