http://www.taylormarshall.com/2011/09/did-st-jerome-reject-deuterocanoical.html
This is taken out of context, and like the often stated fallacy that Luther was a maverick in rejecting books from a suppsedly indisputable canon, is superficial at best: . http://beggarsallreformation.blogspot.com/2011/10/did-jerome-change-his-mind-on-apocrypha.html
Jerome also wondered why one would sanction the version of a heretic and judaizer, and it is clear that other weighty Catholic authorities followed Jerome in excluding or doubting apocryphal books, as well substantiated here and see post 137 .
The Catholic Encyclopedia states,
In the Latin Church, all through the Middle Ages [5th century to the 15th century] we find evidence of hesitation about the character of the deuterocanonicals. There is a current friendly to them, another one distinctly unfavourable to their authority and sacredness, while wavering between the two are a number of writers whose veneration for these books is tempered by some perplexity as to their exact standing, and among those we note St. Thomas Aquinas. Few are found to unequivocally acknowledge their canonicity. The prevailing attitude of Western medieval authors is substantially that of the Greek Fathers. The chief cause of this phenomenon in the West is to be sought in the influence, direct and indirect, of St. Jerome's depreciating Prologus.
"..the inferior rank to which the deuteros were relegated by authorities like Origen, Athanasius, and Jerome, was due to too rigid a conception of canonicity, one demanding that a book, to be entitled to this supreme dignity, must be received by all, must have the sanction of Jewish antiquity, and must moreover be adapted not only to edification, but also to the "confirmation of the doctrine of the Church", to borrow Jerome's phrase." (Catholic Encyclopedia, Canon of the Old Testament; http://www.newadvent.org/cathen/03267a.htm) (http://www.newadvent.org/cathen/03267a.htm)