Turning HTML Results Page into PDF and Downloading in CGI file

问题

I am working in PERL and I have an html results page that displays perfectly. I want to add a button that makes this html page a pdf that downloads onto your machine. Below is the code that generates the html page. fileFH is generated in the CGI code.

sub searchResults {
my $data = shift;
my $file = "$OUTFILES/$data.html";

open(my $fileFH, '<', $file) or return "Can not find file\n";

print $cgi->header();

while (<$fileFH>) {
    print qq($_);
}
close($fileFH);
}

回答1:

If you are open to an external program/dependency for the conversion I highly recommend http://wkhtmltopdf.org/

Flow:

1. Button Click
2. wkhtmltopdf is provided target URL
3. Output sent to user

You may want to cache the output as well to reduce the number of conversions.

EDIT Perl already has a wrapper too.

https://metacpan.org/release/PDF-WebKit

来源：https://stackoverflow.com/questions/39500817/turning-html-results-page-into-pdf-and-downloading-in-cgi-file