How to Merge PDF Files
Step 2. Input PDF Files
Step 3. Arrange File Order
Select the file you want to move and click "Move Up" or "Move Down" to change its order. Or you can choose "Remove" to delete selected file from the list or click "Clear" to remove all files.
Step 4. Start Merging
Click "Merge PDF" and in the popped up window, select an output folder for the merged PDF file. Then click "OK" to start PDF merging.