pdf.js start from the bottom of the document

Question

We are making an implementation that will change to the previous document when roll up to the start of current document.

I would like, in that case, to start from the bottom of the document. Its not hard to accomplish from inside the code (viewer.js), but I wouldn't like to change the original code from pdf.js so would make easier to update when needed.

Is there anyway to accomplish that, without changing the code from viewer.js?

Answer 1

In function scrollIntoView(element, spot) of viewer.js, we did for now this:

if(window.parent.PDFStartBottom){
      parent.scrollTop = parent.scrollHeight - element.offsetTop - parent.clientHeight;
      return;
  }