PDFCreator can add a single or multiple attachment pages to your documents. The attachment files may contain multiple pages. These pages will be placed in the document behind the actual pages.
Attachment file (PDF): The attachment files must be PDF files. Add an attachment file by clicking on Add File. An overlay will be opened, where you can enter or select a file path. To edit or remove files please click on the box with the previously added file. The overlay will open again, with an additional button to Remove the file.