private PageBacking LoadBackground(TemplateProject project, int sourcePageIndex, TemplatePage pageDef)
{
var backing = new PageBacking();
if (_basePdf is null && !string.IsNullOrWhiteSpace(project.BasePdfFile !))
{
using var fileStream = _files.Load(project.BasePdfFile);
_basePdf = PdfReader.Open(fileStream, PdfDocumentOpenMode.Import); // Must use import mode to copy pages across
}
if (_basePdf != null)
{
backing.ExistingPage = _basePdf.Pages[sourcePageIndex];
}
if (!string.IsNullOrWhiteSpace(pageDef.BackgroundImage !))
{
using var fileStream = _files.Load(project.BasePdfFile);
backing.BackgroundImage = XImage.FromStream(fileStream);
}
return(backing);
}