Originals? Where? What source? This is study that most church members of all “denominations” are ignorant about because the CLERGY wants the believers ignorant, and so do the Bible publishers.
For the Old Testament, the Septaguint, of course, as that is the one that Christ Himself (and his Apostles) used and taught from (and the one eviscerated by the post-Christian Jews, and which Martin Luther adopted). There is some disagreement on the New Testament, but certainly the canon of the New Testament was complete by ca. 400AD. The RC Bible is unchanged from that time to present day.