How to Combine Two or More PDF Files into One PDF? (PDF Merger)

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1. In the "Explore" tab, tap the "Merge PDFs" option.

2. Select 2 or more files and tap the "Next" button at the bottom of the screen.

3. Then you will enter a page that shows the file order for merging. You can drag the file to rearrange the file order. 

4. Then tap the "Merge" button to start merging. 

5. The output file will be saved in the "Split & Merge" folder.