PDF File Merge (UWP) Can help you merge multiple PDF files into one PDF file for easy printing and reading. One-time purchase and use.
PDF File Merge App-Convert PDF files, merge PDF files, stitch multiple PDF files, quickly combine and convert formats.

The main function:

Simple and easy to use.
Select two or more PDF files at once to merge.
Add PDF files to the list, support multiple selection of files.
You can view the PDF name, PDF path, the memory size of the PDF file, the number of PDF pages, and the creation date of the PDF.
You need to name the PDF when outputting.
Generate the latest PDF files quickly.
Choose any folder to save the latest PDF file.
After the document is successfully created, you can choose to open the document.

PDF files do not need to be converted by third-party websites.
It can be completed without a network, and the conversion is completed locally, ensuring data security.