pdfjs render links to open in separate window?

Hi All & James, has anybody been able to change PDFJS to open links in a separate window? I tried inserting "PDFJS.externalLinkTarget = PDFJS.LinkTarget.BLANK;" into /sites/all/libraries/pdf.js/build/pdf.js with no success.

Solved! upgraded PDF to dev version

After I upgraded from pdf 7.x-1.9 to the current 7.x-1.x-dev version with drush and cleared the cache it is working now :)