Convert vba from 1.7.3 to new release

PDFCreator PDFCreator English
1

Hi all
For many years I was using PDFCreator 1.7.3 with office 32 bits. Actually, Windows 11 explorer (64 bits) do not allow previewing for docs while using office 32 bits. So I will migrate to last release of PDFCreator.
Then, I actually don't know how to replace some function previously provided by object pdfforge.pdf.pdf, or pdfforge.pdf.pdftext as

    Set Pdf = CreateObject("pdfforge.pdf.pdf") 
    Set PdfText = CreateObject("pdfforge.pdf.pdftext")

then using

    PdfText.FontName = "Calibrib.ttf"
    PdfText.FontSize = 8
    PdfText.YPosition = 3
    PdfText.Text = 'Some text' ' or "Page [PAGE] / [PAGES]" for paging

    Pdf.NumberOfPages('FileName')
    Pdf.mergePDFFiles_2 (LstPdf), 'DestFileName', True
    Pdf.AddPageNumberToPDFFile InFileName, OutFileName, FromPg, ToPg, StartNum, ToNum, Pos, PosX, PosY, (PdfText)

So how to set text style (font, size, ...), content and position and place this object into pdf file with new object model as

    Pdf.AddPageNumberToPDFFile 'InFile', 'OutFile', FrPg, ToPg, StartNum, ToNum, Pos, PosX, PosY, (PdfText)

did ?
How to get page count for a PDF file (just a file, not a printing job) as

    Pdf.NumberOfPages('FileName')

did ?
How to merge a list of pdf files (in an arry) to one destination file as

    Pdf.mergePDFFiles_2 (LstPdf), 'DestFileName', True

did ?

Please help with some vba sample