Add Text to PDF (PDFBox 3.0.5) - Maven project

This small utility appends text to an existing PDF using Apache PDFBox 3.0.5.

Requirements:

• Java 17+
• Maven

Build:

mvn package

The build produces a shaded runnable jar in: target/add-text-pdf-1.0.0.jar

Usage:

java -jar target/add-text-pdf-1.0.0.jar <input.pdf> <output.pdf> "<text-to-add>" [pageIndex] [x] [y] [fontSize]

Parameters:

• input.pdf: path to existing PDF
• output.pdf: path to write the modified PDF
• "text-to-add": quoted text; supports newlines with \n
• pageIndex: zero-based page index (default: 0)
• x: x coordinate in PDF user space units (default: 50)
• y: y coordinate in PDF user space units (default: 700)
• fontSize: font size in points (default: 12)

Examples:

• Append "Hello" on first page at (50,700):

  java -jar target/add-text-pdf-1.0.0.jar input.pdf output.pdf "Hello"

• Append multi-line text on page 2 at (100,600) with 14pt:

  java -jar target/add-text-pdf-1.0.0.jar input.pdf output.pdf "Line1\nLine2" 1 100 600 14

Notes:

• This program appends text (does not remove or reflow existing content).
• Coordinates origin is at the bottom-left of the page.
• The default font is Helvetica-Bold (PDType1Font.HELVETICA_BOLD).