Question

是否可以在codeigniter中创建密码保护的PDF文件？我需要使用密码来保护我通过电子邮件发送的PDF文件。

任何人都知道这样做吗？

Answer 1

在mpdf库中按照https://mpdf.github.io/reference/mpdf-functions/setprotection.html#examples

使用它

 <?php

    $mpdf = new mPDF();

    // Encrypt the file and grant no permissions to the user to copy, print etc.

    // The user will be able to open the file as no password is specified

    // Owner cannot access full rights because no owner_password was set

    $mpdf->SetProtection(array(), 'UserPassword', 'MyPassword');

    $mpdf->WriteHTML('
    Hallo World
    ');

    $mpdf->Output('filename.pdf');

    ?>

邮件使用此示例。

Example - Sending file as e-mail (and also to browser)

<?php

$mpdf = new mPDF();

$mpdf->WriteHTML($html);

$mpdf->SetProtection(array(), 'UserPassword', 'MyPassword'); //set password

$content = $mpdf->Output('', 'S');

$content = chunk_split(base64_encode($content));

$mailto = 'recipient@domain.com';

$from_name = 'Your name';

$from_mail = 'sender@domain.com';

$replyto = 'sender@domain.com';

$uid = md5(uniqid(time()));

$subject = 'Your e-mail subject here';

$message = 'Your e-mail message here';

$filename = 'filename.pdf';

$header = "From: ".$from_name." <".$from_mail.">\r\n";

$header .= "Reply-To: ".$replyto."\r\n";

$header .= "MIME-Version: 1.0\r\n";

$header .= "Content-Type: multipart/mixed; boundary=\"".$uid."\"\r\n\r\n";

$header .= "This is a multi-part message in MIME format.\r\n";

$header .= "--".$uid."\r\n";

$header .= "Content-type:text/plain; charset=iso-8859-1\r\n";

$header .= "Content-Transfer-Encoding: 7bit\r\n\r\n";

$header .= $message."\r\n\r\n";

$header .= "--".$uid."\r\n";

$header .= "Content-Type: application/pdf; name=\"".$filename."\"\r\n";

$header .= "Content-Transfer-Encoding: base64\r\n";

$header .= "Content-Disposition: attachment; filename=\"".$filename."\"\r\n\r\n";

$header .= $content."\r\n\r\n";

$header .= "--".$uid."--";

$is_sent = @mail($mailto, $subject, "", $header);

$mpdf->Output();

Codeigniter使用密码创建pdf文件

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