How to Scan Documents on Xiaomi Redmi Note 7: The Complete Guide

The Redmi series has long proven itself to be reliable for everyday tasks, and the Note 7 is no exception. Although it was released a few years ago, its 48-megapixel camera is capable of creating digital copies of documents that surpass many office scanners. Mobile scanning is becoming the standard, allowing you to instantly digitize paper, checks and certificates.

You don’t have to install third-party heavy apps to get a great result. The built-in MIUI tools and standard Android operating system features provide everything you need to work with text. The Sony IMX586 main sensor installed in the Redmi Note 7 has enough detail to recognize even small print.

In this article, we will break down all available methods, from native functions to specialized software, you will learn to adjust the focus, remove glare and save files in the correct format, which will save you time and eliminate the need to search for a working printer or MFP.

Preparation of the camera and workspace

The quality of the final file depends on the shooting conditions. Before you open the application, you need to prepare the environment. Lighting is crucial: avoid sharp shadows falling from the hands or body of the phone on a piece of paper.

Wipe the camera lens with a soft cloth. Fat fingerprints, invisible in normal mode, turn into blurry stains when you take macro text, making the document unreadable. The Redmi Note 7 camera has a protruding module that often gets dirty when you come into contact with the table.

• 📸 Find a contrasting surface under the document so that the boundaries of the sheet are clearly distinguished.
• 📐 Place the phone strictly parallel to the plane of the table, avoiding tilts and distortions of perspective.
• 💡 Turn off the flash as it creates a bright white spot in the center of the frame, highlighting the text.

Hand stabilization is also important, and even the slightest shaking can smear small letters, elbows against a table, or use a stand to fix the device, which is especially true when scanning multi-page contracts, where uniformity of quality is important.

Use of the built-in Camera application

The standard MIUI Camera application has hidden potential for document processing. You don't have to look for special modes if you know how to set the basic parameters correctly. Open the app and hover the lens over the text.

Click on the screen in the area of text to focus. You'll see a slider in the exposure -- lower it down a little bit. Underexposure often makes black text more contrasting against a white background, removing the gray hues of paper. This is the first step to a quality copy.

⚠️ Attention: Don't use digital zoom to zoom in. It just crops the image, lowering the resolution. It's better to come closer physically or use macro shooting mode if the text is very small.

Once you have set up your frame, take a picture. If Documents mode is available in your region or firmware version (sometimes it is in the "More" section or is called through the Google Lens widget in the camera interface), be sure to use it. It automatically aligns the perspective and removes shadows.

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To scan glossy pages with text, rotate the phone at a small angle to remove glare, and then align the perspective programmatically.

Scanning through Google Lens (Google Lens)

The most powerful tool for Xiaomi Redmi Note 7 owners is integration with Google Lens, which is built-in and accessible directly from the search widget or through the Google app. It doesn't just take pictures, it analyzes the content of the frame.

Run a Google search widget on your desktop and click on the camera icon. Hover the lens over the document and select the tab "Text" or "Document." The system automatically determines the boundaries of the sheet, even if you hold the phone curved. This is called automatic framing.

After pressing the shutter button, Google Lens will offer several actions:

• 📄 Copy text to the clipboard for insertion into the messenger.
• 🖼️ Save as an image with automatic angle alignment.
• 📧 Send directly to the app or save to Google Photos.
• 🗣️ Voice text (a function available for some languages).

The advantage of this method is intelligent processing: algorithms remove distortion caused by bending the page or shooting angle. For the Redmi Note 7, with its high resolution, it is the ideal option, allowing you to get a result close to a professional scanner.

Third-party applications for professionals

If built-in tools are not enough, Google Play offers customized solutions, such as Adobe Scan, Microsoft Lens and TinyScanner, which create PDF files that compress them for easy transfer but keep them readable.

Let’s look at the table of comparison of popular solutions for your smartphone:

Installing a heavy app like CamScanner on the Redmi Note 7 can be justified if you need to handle dozens of pages a day, but for rare tasks, it's fairly lightweight. Pay attention to the scanning quality settings: choose Document or B/U mode (black and white) for maximum contrast.

Many applications allow you to create multi-page PDF-You just scan the first page, then the second, and at the end you save it as one file).

Processing and improving image quality

Once you've created a picture, you often need to finish the work. The MIUI Gallery has a built-in editor that allows you to quickly fix the flaws. Open the photo, click Change and select the Cover tool.

Align the horizon so that the lines of text run parallel to the edges of the frame. Then go to the color settings. Increase the contrast setting and reduce the brightness a little. This will make the background whiter and the text blacker. The Document or B&W filter often works wonders by turning the photo into a scan.

⚠️ Attention: When contrast is increased, thin lines of text may disappear or stick together.

If you plan to send a document through instant messengers, use the compression function. In Telegram or WhatsApp, send the file as "Document" rather than "Photo" to avoid loss of quality when compressed by the messenger. A file weighing 2-3 MB will read much better than a blurred picture of 200 KB.

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The perfect scan is the balance between high contrast and keeping thin elements of the font readable. Don't overdo it with filters.

Frequently Asked Questions (FAQ)