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php如何给pdf加上文字水印和图片水印

智云科技发布于 2022年6月3日评论(37)阅读(443)

php给pdf加上水印
环境
php5.5.12
fpdi-1.5.2
fpdf-1.7
原理
利用fpdi来加载已知pdf文件，用fpdf对pdf进行操作

注意事项
免费的fpdi只支持处理pdf1.4及以下版本，1.5以上就需要用到FPDI PDF-Parser插件

使用方法
fpdi-1.5.2
fpdf-1.7
1.文字水印 word.php

<?php

require_once(‘./fpdf/fpdf.php’);
require_once(‘./fpdi/fpdi.php’);

//word_watermark
$pdf = new FPDI();

// get the page count
pageCount = pageCount =pdf->setSourceFile(‘more.pdf’);

// iterate through all pages
for (pageNo = 1; pageNo =1;pageNo <= pageCount; pageCount ;pageNo++)
{
// import a page
templateId = templateId =pdf->importPage($pageNo);

// get the size of the imported page
size = size =pdf->getTemplateSize($templateId);

// create a page (landscape or portrait depending on the imported page size)
if (size[‘w’] > size [′ w ′]>size[‘h’]) pdf->AddPage(‘L’, array( pdf −> AddPage (′ L ′, array (size[‘w’], $size[‘h’]));
else pdf->AddPage(‘P’, array( pdf −> AddPage (′ P ′, array (size[‘w’], $size[‘h’]));

// use the imported page
pdf->useTemplate( pdf −> useTemplate (templateId);

$pdf->SetFont(‘ Arial ‘,’B’,’12’);
// sign with current date
$pdf->SetXY(0, 0); // you should keep testing untill you find out correct x,y values
$pdf->Write(7, date(‘Y-m-d’));

}
$pdf-> Output (‘word.pdf’);

2.图片水印 pic.php

<?php

require_once(‘./fpdf/fpdf.php’);
require_once(‘./fpdi/fpdi.php’);

//pic_watermark
$pdf = new FPDI();
// get the page count
pageCount = pageCount =pdf->setSourceFile(‘more.pdf’);

// iterate through all pages
for (pageNo = 1; pageNo =1;pageNo <= pageCount; pageCount ;pageNo++)
{
// import a page
templateId = templateId =pdf->importPage($pageNo);

// get the size of the imported page
size = size =pdf->getTemplateSize($templateId);

// use the imported page
pdf->useTemplate( pdf −> useTemplate (templateId);

// Place the graphics
$pdf->image(“test.png”, 75, 85, 50);

}
$pdf->Output(‘pic.pdf’);

3.项目地址

pdf_watermark

文章来源：智云一二三科技

文章标题：php如何给pdf加上文字水印和图片水印

文章地址：https://www.zhihuclub.com/79197.shtml

关于作者: 智云科技

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