How can one resolve the issue of not being able to open an existing PDF file when using PDFlib in PHP?

Issue: One possible reason for not being able to open an existing PDF file when using PDFlib in PHP could be due to incorrect file paths or permissions. To resolve this issue, ensure that the file path is correct and that the PHP script has the necessary permissions to access the file. 

<?php
// Specify the correct file path to the existing PDF file
$file_path = '/path/to/your/existing/file.pdf';

// Check if the file exists and is readable
if (file_exists($file_path) && is_readable($file_path)) {
    // Open the existing PDF file using PDFlib
    $pdf = new PDFlib();
    if ($pdf->open_pdi_document($file_path, "") == 0) {
        // PDF file opened successfully
        // Add your PDFlib operations here
    } else {
        // Error opening PDF file
        echo "Error opening PDF file.";
    }
} else {
    // File does not exist or is not readable
    echo "File does not exist or is not readable.";
}
?>

Keywords

PDFlib PHP open existing file

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