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

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1. In the "Documents" tab, tap the "Edit" button on the top right corner of the screen to enter the management mode.

2. Select 2 or more files and tap the "More" button on the bottom right corner of the screen.

3. Choose "Merge" from the menu.

4. Then you will enter a page where shows the file order for merging. Tap the "Edit" button and then you can rearrange the file order by drag-and drop. 

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

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