是否可以使用PHP从PDF文件中删除密码? [英] Is it possible to remove a Password from a PDF file using PHP?

问题描述

我想问问是否可以使用PHP从我已经知道密码的受密码保护的PDF文件中删除密码?我看过此页面，其中提供了许多选项但使用bash脚本. :(我被要求尽可能多地使用PHP.任何建议表示赞赏！

I would like to ask if it's possible to use PHP in removing a password from a password-protected PDF file in which I already know the password? I've seen this page which provides many options but using bash script. :( I was required to use PHP as much as possible. Any suggestions appreciated!

推荐答案

当然，您可能要做的就是对加密和压缩进行反向工程，并在PHP中实现反向操作-但为什么要麻烦:

Of course it's possible, all you need to do is reverse engineer the encryption and compression and implement the reverse operations in PHP - but why bother:

<?php
   `gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=unencrypted.pdf -c .setpdfwrite -f encrypted.pdf`;
?>

C.

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