PHP - FPDI无法打开现有PDF

Question

FPDI无法加载现有PDF。如何解决？

require_once(APPLICATION_PATH . '/models/fpdf/fpdf.php');
require_once(APPLICATION_PATH . '/models/fpdi/fpdi.php');
$pdf = new FPDI();
$pageCount = $pdf->setSourceFile( APPLICATION_PATH . '/models/fpdi/en.pdf');
$tplIdx = $pdf->importPage(1, '/MediaBox');
$pdf->addPage();
$pdf->useTemplate($tplIdx, 10, 10, 90);
$pdf->Output(); 

Answer 1

 <?php
require_once('fpdf.php');
require_once('fpdi.php');

//启动FPDI

$pdf = new FPDI();

//添加页面

$pdf->AddPage();

//设置源文件

$pdf->setSourceFile("PdfDocument.pdf");

//导入第1页

$tplIdx = $pdf->importPage(1);

//使用导入的页面并将其放置在宽度为100 mm的点10,10

$pdf->useTemplate($tplIdx, 10, 10, 100);

//现在在导入的页面上面写一些文字

$pdf->SetFont('Helvetica');
$pdf->SetTextColor(255, 0, 0);
$pdf->SetXY(30, 30);
$pdf->Write(0, 'This is just a simple text');

$pdf->Output();