Change the default filter applied to scans
Genius Scan attempts to automatically filter your documents based on their content:
- For black-and-white documents, Genius Scan will apply a grayscale filter.
- For color documents, Genius Scan will enhance the colors.
In this article, you will learn how to change the applied filter for a given page, how to specify a default filter to always enhance your scans in the same way, and what are the different filters at your disposal.
Change the filter for a page
iOS
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Open a document and tap edit at the bottom of the screen.
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Choose the appropriate filter from the filter row. Here, the applied filter is Photo.
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PS: the None filter shows the original picture.
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Android
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Open a document and tap briefly on a page.
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Tap Filters.
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Change the filter (here, the Auto filter chooses the best filter to apply to the document).
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Change the filter applied to all future scans
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Go to Settings > General > Default Filter.
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Choose a filter that will be applied by default when you scan a new document.
What are the different filters available?
Genius Scan attempts to detect the best filter to apply to your document, but you can always change it. Note that the Black and White and Color filters include Soft and Strong variations:
- Soft: Perfect for low-contrast documents like handwritten notes or carbon copies, where preserving subtle details matters.
- Strong: Ideal for high-contrast needs like sharp text or clear invoices, removing shadows and boosting clarity.
| Filter | What Genius Scan does | Good for … |
| None | No filter will be applied | You want to keep the original untouched. |
| Black and White | Genius Scan clears up the background and turn the scan into black and white. | Mostly black and white documents such as receipts, contracts, official documents etc. |
| Color | Genius Scan clears up the background but keeps the colors. | Mostly black and white documents with some color: documents with letterheads, logos, whiteboards… |
| Photo | Genius Scan bumps up the colors so that the photo looks very vivid. | Postcards, photographs, paintings… |
| Dark background | Genius Scan clears the background and evens its color to contrast sharply with the light text. | Designed specifically for documents with light text on dark backgrounds. |