Instead of using RenderDocumentToFile you will need to use add your own loop and call RenderPageToFile instead.  This will allow you to control the filename for each page and to add leading zeros.

' -------------------------------------------------------------------------------------------------------------------------

Set qp = reportobject("QPDF.QuickPDF")

QP.LoadFromFile("input.pdf", "");

lNumPages = QP.PageCount();

for page = 1 tp lNumpages

begin

  ' Here you need to create a unique filename for each page with leading zero's.

  filename = docpath + "\" + picturequality + String.Format("{0:0000}", page)   '  Visual Basic - Google Search for 'VBScript leading zeros' if you need VBScript

  QP.RenderPageToFile(dpi, page, 3, filename);

end;

QP.RemoveDocument(QP.SelectedDocument())

' --------------------------------------------------------------------------------------------------------------------------

Andrew

This sounds more like a coding problem than a Debenu Quick PDF Libary file.  Files in an operating system are sorted on an ASCII sort.  If you want page numbers sorted numerically then you will need to load the filenames into a custom sort algorithm that sorts the files numerically.

If you post some code as to how you load each file then we may be able to help you.

Andrew.

May i know why the the issue is arising and solution for the problem...

Thanks in advance....