How about inserting a song as a background music?

How to insert a background music?

Flip PDF allows you to insert a background music. you can also control its looping times.

More details follow easy steps below:
1. On the left "+&-" menu box, choose "Sound";
2. Set "Enable" for the "Enable Sound";
3. Browse a music file from the selection box after "Sound file";
4. Set loops times, "-1" stands for infinite loopping, digit bigger than "0" stand for loopping times;
5. Click button "Apply Change".

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