With Flip PDF, you can change the flipping book looking to the style you like. For example, you can change background color if you think the default color doesn’t match to your album. You can even set the gradient angle to make better design.

You can see “gradient color A” and “gradient color B” under the “background color” option. Click “…” button respectively to choose color for them. The below “gradient angle” option velum is set to customize the angle of the two color.

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