Reordering pages in a PDF document using JavaScript

To reorder pages in a PDF document by reversing the order of pages.

Given the copy and delete page operations described in other sections, it is easy to re-arrange and sort pages.

async function main() {
  const doc = await PDFNet.PDFDoc.createFromURL(filename);

  const page_num = await doc.getPageCount();
  for (let i=1; i<=page_num; ++i)
  {
    const itr = await doc.getPageIterator(i);
    const page = await itr.current();
    doc.pageRemove(itr);
    doc.pagePushFront(page);
  }
}
PDFNet.runWithCleanup(main);

Merge, copy, delete, and rearrange PDF pages
Full code sample which illustrates how to copy pages from one document to another, how to delete, and rearrange pages and how to use ImportPages().