How to scan a document on a Xiaomi Redmi phone: everything from built-in tools to professional applications

Scanning documents via a smartphone has long replaced bulky MFPs and printers — especially when it comes to Xiaomi Redmi models with their advanced cameras and branded chips like the one in the market. AI-The document is in the standard Camera app, but not all users know that even the budget Redmi Note 10 or Redmi. 9A They can create scans as high as specialized scanners for 10,000 hours.₽ — Provided the right settings and the choice of the appropriate method.

In this article, we will analyze all available methods - from hidden functions. MIUI to third-party applications OCR (Text recognition, which will turn your Redmi into a full-fledged office scanner, and we will focus on the unique features of Xiaomi that are not on smartphones of other brands, for example, automatic alignment of the edges of a document or exporting to the Internet. PDF/A (We also reveal the secrets of how to avoid typical errors - blurred scans, distorted colors or files that are too heavy that are not sent by mail.

1. Built-in mode "Document" in the Camera application: hidden opportunities

The most obvious, but often underestimated way is to use the proprietary mode of the Document in a standard Chamber. MIUI. It is available on all Redmi since the Redmi Note 8 (2019) and automatically activates the device:

• 📏 Perspective correction (removes the trapezoid effect when the document is shot at an angle)
• 🔍 Improved text clarity (increases font contrast)
• 🎨 Optimization of color rendering (for c/b documents or color diagrams)
• 📄 Automatic framing (cuts the background, leaving only a sheet)

To take advantage of it:

1. Open the Camera app.
2. Fly through the shooting modes left to the Document item (on some models it is hidden in the Document). → Document).
3. Point the camera at the document – the frame will automatically highlight the boundaries of the sheet.
4. Press the down button. The finished scan will be saved in the gallery in the Scana folder.

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If there is no Document mode, update the Camera app via the Play Store or check for updates. MIUI In Settings → The phone. → Updating the system.

The main advantage of this method is the instant result without installing third-party applications.

• ⚠️ No function. OCR (text-recognition).
• ⚠️ The maximum resolution of the scan is 12 MP (on flagships like Redmi). K50 You can increase to 24 MP by hand).
• ⚠️ No batch scanning (you have to take photos of each sheet separately).

Scanning through MIUI Scanner: a little-known application from Xiaomi

In the firmware MIUI 12.5 and newer hidden appendix MIUI Scanner is the Google Drive Skanner, but it integrates into the Xiaomi ecosystem:

• 📑 Multi-page PDF (combining multiple scans into one file)
• 🔎 Text recognition (OCR) 10+ languages, including Russian)
• ☁️ Autoboot to Mi Cloud (if synchronization is enabled)
• 🖼️ Filters: "Black and white", "Color", "Lightening of the text»

How to find and use MIUI Scanner:

1. Open Settings → Applications → Application Management.
2. Search for Scanner.
3. Click on the app found and select Open.
4. Allow access to the camera and storage.
5. Point the camera at the document – the application will automatically take a photo of the sheet when Detection borders.

Advantages over the regime Document:

Make sure the document is on a flat surface.

Turn on bright lights (avoid shadows)

Clean the camera lens of dust

Turn off “charge savings” in settings

Check the free space on your phone (scans take up) ~1-5 MBT each)-->

Important: on some models (for example, Redmi) 10C) MIUI Scanner may not be available, and in this case, you can manually install it by downloading it. APK from the official forum of Xiaomi (link: forum.xiaomi.com).

3.Google Drive: Universal Cloud-Saving Scanner

If you use Google services, the built-in scanner in Google Drive is a great alternative, it doesn't require you to install any additional apps, and it automatically saves the scans to the cloud.

1. Open the Google Drive app.
2. Press. + → Scan (scanner icon in the bottom menu).
3. Point the camera at the document. Google Drive will automatically find the boundaries of the sheet.
4. Press the shooting button. Edit the scan if necessary (trimming, turning, filters).
5. Click Ready – the file will be saved in format PDF in the selected Drive folder.

Pros of the method:

• 🌐 Cross-platform: scans are immediately available on a PC, tablet or other phone.
• 🔍 OCR Google: text on the scan can be copied and searched (Search in the document function).
• 📱 Low Requirements: Works even on older Redmis 7A.

Cons:

• ⚠️ File size limit: Up to 15GB of files can be downloaded for free (but scans rarely exceed 10MB).
• ⚠️ Quality. OCR It is worse than in specialized applications like Adobe Scan.

Built-in camera (Document mode)

MIUI Scanner

Google Drive

Third-party applications (CamScanner, Adobe Scan, etc.)

In other ways.-->

4 Third-Party Apps: CamScanner vs Adobe Scan vs Microsoft Lens

If built-in tools aren't enough, consider professional apps.-3 solutions on the Redmi Note 11 Pro and Redmi. 9T:

Selection recommendations:

• 📄 For students and office workers: Adobe Scan (best export to the U.S.) PDF/A archive).
• 📊 To scan tables and diagrams: Microsoft Lens (recognizes Excel cells).
• 💼 For Business: CamScanner (Electronic Signature Features).

Important: on Redmi with MIUI 13+ Some applications (such as CamScanner) may conflict with system permissions. If the scanner doesn't start, go to Settings → Special permits → Autostart and enable autostart for the application.

5. Secret Chips: How to Improve Scan Quality on Xiaomi Redmi

Even with the perfect app, scans can be blurred or color distorted, and here are some exclusive tips for Redmi owners:

• 🔦 Use a flashlight as a backlight: on models with AMOLED-screen (e.g. Redmi) K40) Turn on the white screen at maximum brightness and put the document on top – this will eliminate shadows.
• 📱 Activate the Professional mode: in the standard Camera, switch to Pro, install ISO 100 and endurance 1/125 clear-scan.
• 🔄 Turn it off. HDR: In the camera settings, deactivate HDR — It can distort the color of the text.
• 📏 Colour calibration: in MIUI Scanner select text highlighting filter for h/b documents – this will increase contrast by 30%.

A unique feature for Redmi with an IR port: If your phone supports an IR blaster (like the Redmi Note 10 Pro), you can remotely control the lighting in the room via the Mi Remote app to avoid glare on the scan.

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For maximum quality, use a combination: MIUI Scanner + manual camera setup in Pro mode + lighting.

6.Export and processing of scans: how to reduce file size and add OCR

A finished scan often requires some work. Here's how to optimize files directly on Redmi:

• 📉 Reduce size PDF: Open the file in Adobe Acrobat Reader. Select File → Reduce file size. Set Quality: Medium (150) DPI) — That's enough for print.
• 🔤 Addendum OCR existing PDF: Install Office Lens or Adobe Scan. Import the file via Open → Select a file. Click Recognise text and save a new one. PDF.

For batch processing (for example, 50 scans for archives), use Fast Scanner (available in the Play Store).

• Put the scans together. PDF.
• Turn the pages automatically.
• Add watermarks (useful for confidential documents)

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If you need to send a scan by mail, but the file is too large, convert it to a new one. PDF/XPS Xodo PDF. This format weighs in 2-3 less than the standard PDF, equally.

7.Typical mistakes and how to avoid them

Even experienced users make scanning errors, and here are the most common problems on Xiaomi Redmi and their solutions:

⚠️ Note: If scans are blurred at the edges, check if the camera settings are on Wide-angle lens mode, which distorts perspective on multi-camera models (e.g. Redmi Note). 11S). Turn it off in the camera settings → Additionally. → Use the main camera.

Problem 1: The scan is too dark or light

• 🔦 Reason: Automatic exposure is lost due to dark background or glare.
• 🛠️ Solution: Use MIUI Scanner with text illumination filter. Manually configure the exposure in Pro mode (value) EV from +0.7 to +1.3).

Problem 2: PDF weighs hundreds of megabytes

• 📄 Reason: Too high resolution (e.g., 600) DPI text-based).
• 🛠️ Solution: In the scanner settings set 300 DPI (Optimal for printing. Use compression via Smallpdf (online service).

⚠️ Attention: Redmi with Snapdragon processor 6xx (For example, Redmi Note 9 Pro when scanning documents ≥20 pages can get overheated. To avoid the brakes, close the background apps through Settings → Battery → Performance mode.

FAQ: Frequent questions about scanning on Xiaomi Redmi