Open the Illustrator and load the image.
Tips：Create some texts or objects that you want to fill with
the spot white.
Add a new color swatch.
Tips: Set the new color name is Spot_White and the Color Type is Spot Color
Fill Objects with Spot White Swatch and overprint.
Save as PDF or EPS format.
（1）Save as PDF format
Tips: Set the Adobe PDF Preset is Press Quality.
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