Here is a tutorial how to merge multiple PDF files into one through two ways online and offline.
#1 Using pdfjoiner.com
First prepare several PDF files that you want to merge into one. Then you can open pdfjoiner.com, upload all the PDF files by clicking the button “Upload Files“, after all uploaded 100% you can merge the PDF file by clicking the button “Join Files“, and done. Take a look at the following image guidelines.
#2 Using 7 PDF Split & Merge
Secondly, you can use a powerful Software called 7 PDF Split & Merge, you can download the software here. Then after you install, you can open the software, in the tab section “Merge PDF Files” Please add PDF files that you want to merge so one by clicking the button “Add“, then after finishing all, you can finish by clicking the button “Merge PDF Files !“, don’t forget to specify the file output location. Please see the following screenshots. You can see the video tutorial how to merge multiple PDF files into one please click here.