QPDFPageData::QPDFPageData(QPDFPageData const& other, int page) :
    filename(other.filename),
    qpdf(other.qpdf),
    orig_pages(other.orig_pages)
{
    this->selected_pages.push_back(page);
}
QPDFPageData::QPDFPageData(QPDFPageData const& other, int page) :
    filename(other.filename),
    qpdf(other.qpdf),
    orig_pages(other.orig_pages)
{
    this->selected_pages.push_back(page);
}