G'day geekgeekhello,

Welcome to the Monastery.

You haven't said whether you want to programmatically draw a series of rectangles to create your histogram; or if it's already in an image you want to add; or if you have something else in mind.

Take a look at PDF::API2::Content and PDF::Report. These have methods for both drawing and adding images.

Given you say you're familiar with PDF::Table, I assume you're also familiar with PDF::API2 and PDF::API2::Page; however, if you're not, you should also read those documents.