How to Add Pages to a PDF (Insert or Append)

You finished a document and then realized a page is missing — a cover, an appendix, a signed addendum. Rather than starting over, you can add pages to a PDF by combining it with the new page or file.

Under the hood this is a merge: the tool joins your documents into one, copying every page exactly so nothing loses quality. You control the order, so the new pages land where you want them.

To add pages to a PDF with PdfWill: open the Merge PDF tool, upload the original plus the file containing the new pages, drag them into the right order, and download. It happens entirely in your browser.

Once combined, the page manager lets you fine-tune the order or rotate a stray page, and the split tool can pull a section back out if you change your mind.