dyuitTools/dyu/application/common/service/watermark/pdf/Pdf.php

<?php

namespace app\common\service\watermark\pdf;

use Mpdf\Mpdf;
use Mpdf\Config\ConfigVariables;
use Mpdf\Config\FontVariables;
use TCPDF;

/**
 * Class Pdf
 *
 * @Author: Yeshihao
 * @DateTime: 2024/11/28 11:17
 * @package app\common\service\watermark\pdf
 */
class Pdf
{


//	public function waterMark($filePath, $waterText, $type = 0)
//	{
//		$pdf = new Fpdi();
//		$pdf->AddFont('msyh', '', 'msyh.ttf', true); //简体中文可正常显示
//		$pdf->SetFont('msyh', '', 40);
//
//		$pageCount = $pdf->setSourceFile($filePath);
//
//		for ($pageNo = 1; $pageNo <= $pageCount; $pageNo++) {
//$templateId = $pdf->importPage($pageNo);
//			$pdf->AddPage();
//			$pdf->useTemplate($templateId, ['adjustPageSize' => true]);
//$size = $pdf->getTemplateSize($templateId);
//			$center_x = $size['width'] / 2;
//			$center_y = $size['height'] / 2;
//			$pdf->SetXY($center_x, $center_y);
//			//文字水印
//			$pdf->SetTextColor(200, 200, 200);
//			$pdf->Write(0, $waterText);
//		}
//
//		$pdf->Output('F', $filePath); //下载修改后的PDF
//	}


	/**
	 * [waterMark]
	 * 打印水印
	 *
	 * @Author: Yeshihao
	 * @DateTime: 2024/11/28 13:39
	 * @param     $filePath
	 * @param     $waterText
	 * @param int $type
	 * @return bool
	 * @throws \Mpdf\MpdfException
	 * @throws \setasign\Fpdi\PdfParser\CrossReference\CrossReferenceException
	 * @throws \setasign\Fpdi\PdfParser\PdfParserException
	 * @throws \setasign\Fpdi\PdfParser\Type\PdfTypeException
	 */
	public function waterMark($filePath, $waterText, $alpha = 30, $type = 0, $waterText2 = '', $pageWidth = 210, $pageHeight = 297)
	{
		$defaultConfig          = (new ConfigVariables())->getDefaults();
		$fontDirs               = $defaultConfig['fontDir'];
		$defaultFontConfig      = (new FontVariables())->getDefaults();
		$fontData               = $defaultFontConfig['fontdata'];
		$mpdf                   = new Mpdf(['mode'         => '+aCJK',
		                                    'fontDir'      => array_merge($fontDirs, [__DIR__.'/fonts']),
		                                    'fontdata'     => $fontData + ['msyh' => ['R' => 'msyh.ttf',],],
		                                    'default_font' => 'msyh',
		                                    'format'       => [$pageWidth ?: 210, $pageHeight ?: 297],
		]);
		$mpdf->autoScriptToLang = true;
		$mpdf->autoLangToFont   = true;

		$text = $waterText.$waterText2;
		//文字水印
		$alpha         = number_format((100 - $alpha) / 100, 2);
		$watermarkText = new \Mpdf\WatermarkText($text, 30, 30, '#cccccc', $alpha);
		$mpdf->SetWatermarkText($watermarkText, $alpha);
		$mpdf->showWatermarkText = true;
		$mpdf->watermarkAngle    = '45';
		$pageCount               = $mpdf->SetSourceFile($filePath); //读取原始文件页数
		for ($i = 1; $i <= $pageCount; $i++) {
			$import_page = $mpdf->ImportPage($i);
			$mpdf->UseTemplate($import_page);
			if ($i < $pageCount)
				$mpdf->AddPage();
		}
		$mpdf->Output($filePath, 'F');// 下载修改后的PDF
		return true;
	}
}