How to Display PDF Files in the Browser with PHP and Perl: A Comprehensive Guide

Displaying PDF Files in a Browser Using PHP and Perl

Background:

In order to track clicks and conceal the true location of PDF documents, you desire a solution to display PDF files within a user's browser. Despite extensive internet searches, you have not found a straightforward approach.

Solution with PHP:

<code class="php">header('Content-type: application/pdf');
header('Content-Disposition: inline; filename=example.pdf');
@readfile('path/to/example.pdf');</code>

Solution with Perl:

<code class="perl">open(PDF, 'path/to/example.pdf') or die "Could not open PDF [$!]";
binmode PDF;
my $output = do { local $/; <PDF> };
close(PDF);

print "Content-Type: application/pdf\n";
print "Content-Length: " . length($output) . "\n\n";
print $output;</code>

Troubleshooting:

• Missing loading progress bar in Adobe Reader X: Ensure that the 'Content-Transfer-Encoding: binary' header is set.
• Additional browser considerations: Browsers may have settings that force PDF downloads or open them in external applications.

Finalized PHP Code:

<code class="php">$file = './path/to/example.pdf';
$filename = 'Custom file name for example.pdf';

header('Content-type: application/pdf');
header('Content-Disposition: inline; filename="' . $filename . '"');
header('Content-Transfer-Encoding: binary');
header('Content-Length: ' . filesize($file));
header('Accept-Ranges: bytes');

@readfile($file);</code>

This code should enable the display of PDF files within a user's browser, while allowing you to track clicks and maintain the desired level of privacy.

The above is the detailed content of How to Display PDF Files in the Browser with PHP and Perl: A Comprehensive Guide. For more information, please follow other related articles on the PHP Chinese website!