How to Flatten Images in Adobe InDesign

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To flatten images in Adobe InDesign, you can customize Transparency Flattener Presets under the Edit menu. Here are the steps:

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1. To flatten an image in Adobe InDesign, go to 'Edit' → 'Transparency Flattener Presets.'
2. The Transparency Flattener Preset panel will open. Click ‘New.’
3. Edit to adjust settings (e.g., set Raster/Vector balance to 100% for high-res output).‍
4. Apply this preset in the Advancedtab during PDF export.