I am currently concatenating PDF files and images and outputting as one PDF. Images are working fine as I am scaling them to A4 and adding them to the Document object I have created. The problem I have is loading PDF files, scaling them to A4 and then appending them to the Document object. I have used the PdfFileEditor class and the ContentsResizeParameters class to no avail. Please can you explain how I can append a PDF on the file system to a Document object I am generating whislt scaling the page and content down to A4?