Php generates PDF files and encrypts them _ PHP Tutorial

Php generates and encrypts PDF files. Php generates a PDF file and encrypts it. This article describes how to use php to generate a PDF file and encrypt the file or set an access password, if necessary, you can refer to php to generate PDF files and encrypt them.

This article describes how to use php to generate a PDF file and encrypt the file or set an access password. For more information, see.

Project requirement: php generates a PDF file and encrypts the file or sets an access password.

Open-source TCPDF is a PHP-based class library that can generate PDF documents. File encryption is also supported and widely used in open-source PHP frameworks, systems, and applications. Here is the method prototype for setting the relevant attributes of the PDF document, where the password can be set.

?

1 2 3 4 5 6 7 8

TCPDF: SetProtection ( $ Permissions = array ('print ', 'modify', 'copy', 'annot-forms', 'fill-forms', 'expact', 'Assemble ', 'print-high '), $ User_pass = '', $ Owner_pass = null, $ Mode = 0, $ Pubkeys = null )

After the SetProtection () method is set, the generated PDF file is encrypted. when the user opens the PDF file, the user needs to enter the access password.

This article describes how to use php to generate a PDF file and encrypt the file or set the access password. if you need it, you can refer to it...