This process is called merging of PDF files into one PDF file. You need to use a PDF editor for this or else u can choose online tools to merge it. For software you can use PDFelement or Watermark On Pdf . For online you can use HiPDF or iLovePDF or PDFfiller. There are many other available over the internet for PDF editing.
Learn about Adobe's InDesign PDF file format. It is one of the most widely used document formats in the world. InDesign is a free and open source software that powers hundreds of design programs, including Illustrator, InDesign, Adobe Photoshop and dozens of third-party programs. Here are some of the features of InDesign. The format is also used for Word, Excel, Microsoft Publisher, PowerPoint, and many more. The most important thing to know about InDesign is that the program is designed to give you maximum flexibility. InDesign is a flexible document format that allows the creators to create files with different layout options and sizes. Because of it, there is no requirement for you to have a particular degree in a particular field. Because there really is no such thing as a “standard” InDesign file format, you will be able to make any kind of InDesign document you want, regardless of.