What considerations should be taken into account when delivering PDF files from a PHP application to users?

When delivering PDF files from a PHP application to users, it is important to consider the file size, memory consumption, and potential security risks. To efficiently deliver PDF files, you can use PHP's readfile() function to output the file directly to the browser without loading the entire file into memory. 

// Set the appropriate content type for PDF files
header('Content-Type: application/pdf');

// Output the PDF file directly to the browser
readfile('path/to/your/file.pdf');

Keywords

PDF generation PHP headers file handling content-disposition MIME type

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