How to add text watermark and picture watermark to pdf by php
This article mainly explains "php how to add text watermark and picture watermark to pdf", interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Next let the editor to take you to learn "php how to add text watermark and picture watermark to pdf"!
Php watermarks pdf
Environment
Php5.5.12
Fpdi-1.5.2
Fpdf-1.7
Principle
Use fpdi to load known pdf files, and use fpdf to operate pdf
Matters needing attention
Free fpdi only supports pdf1.4 and below. FPDI PDF-Parser plug-ins are needed above 1.5.
Usage
Fpdi-1.5.2
Fpdf-1.7
1. Text watermark word.php
