Have you read the existing nodes about GD on Perl Monks? You might find some useful information there.

From a quick glance at your code, I notice you don't use strict or CGI. You might find several of the Tutorials here useful, such as use CGI or die; and CGI Help Guide.

Although you check for errors when opening file.jpg, you don't check for errors elsewhere, such as when you call GD::Image->newFromJpeg(). You have no way of knowing whether these methods succeed or fail.

In reply to Re: Understanding GD.pm by tomhukins
in thread Understanding GD.pm by cal

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