Document scanning on Xiaomi Redmi: from standard tools to professional solutions

Scan documents using the smartphone Xiaomi Redmi can be no worse than on specialized equipment – provided that you know the hidden features. MIUI And the camera settings are right. In this article, we're going to look at 5 working ways, from built-in tools to applications with a camera. OCR (Text recognition, which will turn your Redmi Note 12 or Redmi 10 into a full-fledged scanner, and focus on the unique function of Document 2.0 in the Internet. MIUI 14+, which automatically removes shadows and aligns perspective without manual processing.

Many users mistakenly believe that a quality scan requires third-party programs like CamScanner or Adobe Scan. In fact, even budget Redmi models (for example, Redmi A2+) cope with the task “out of the box” – the main thing is to adjust the lighting and resolution. Below you will find step-by-step instructions with photos, a comparison table of scan quality and answers to frequent questions (for example, how to reduce the size of a PDF or add an electronic signature).

1. Built-in scanner in MIUI: "Document" function in the Camera application

The fastest way is to use the native Document tool that appeared in MIUI 12 and was significantly improved in MIUI 14, which is available on all Redmi released after 2020 (including Redmi 9A, Redmi Note 11 Pro and later).

• 📸 Cuts the edges of the document (even if you have removed the curve).
• 🎨 Corrects colors – removes yellowness and makes the text clearer.
• 📄 Keeps in PDF Possible to add multiple pages.

To take advantage of the function:

1. Open the Camera app.
2. Scroll through the shooting modes left to the Document item (on some models it is hidden under the Document). → Document).
3. Point the camera at the document, and the frame will automatically illuminate the boundaries. Press the descent button.
4. After shooting, tap on Ready, then select Save as PDF.

⚠️ Attention: Redmi with MIUI There's a bug that goes around 13 and older, and if a document is too dark, the algorithm can "re-light" the text, making it unreadable. HDR in camera settings (path: Camera) → Settings (⚙) → HDR).

Make sure the document is on a flat surface.|

Turn off the flashlight - it creates glare |

Enable HDR mode for better detail |

Check that the watermark is turned off in the camera settings (path: Settings) → Watermark)-->

2.Google Drive: Cloud-Saving Scanning

If you need to not only scan a document, but also upload it to the cloud, use the built-in scanner in Google Drive. This method is suitable for Redmi any model (even on MIUI 11), as it does not depend on the firmware version.

• 🔍 OCR-recognition (text in PDF copyable).
• ☁️ Automatic download to Google Drive with the option of link.
• 📱 Offline (scans are stored locally until the Internet is available).

Instructions:

1. Open the Google Drive app (if not, download it from the Play Market).
2. Press the + → Scan button.
3. Take a picture of the document. Drive will automatically trim the edges and offer filters (Color, B/B, Shades of Grey).
4. Click Save - the file will appear in the Scans folder on the Disk.

💡 Useful tip: If you need to scan your passport or driver's license, select C/B mode - so the text will be clearer, and the file size will decrease by 2-3 times. For color documents (for example, diplomas), use the filter Tsvetnoy with improvement.

Built-in "Document" mode in MIUI|

Google Drive|

Apps (CamScanner, Adobe Scan) |

Another way.-->

3.Side of the application: CamScanner vs Adobe Scan

If the built-in tools don't work well, consider the specialized apps, and we tested the two most popular variants on the Redmi Note 12 Pro+ 5G and Redmi 10C, the results in the table below.

🔹 CamScanner is suitable if you need mass scans (for example, for document archives), the application can automatically name files by date and supports batch processing (up to 50 pages at a time.

🔹 Adobe Scan is better for official documents (contracts, help), as it does not spoil the file with watermarks and integrates with Adobe Acrobat for editing. PDF. Note: Redmi with a small memory (Redmi) 9A, Redmi 8 app can slow down due to heavy weight.

4. Hidden MIUI function: "Fast tools" for scanning

Few people know, but MIUI 13/14 has a hidden scanning tool that works without even opening the camera, called Quick Tools, and is available through:

• 📱 Notification panel (swipe down) → Icon Tools).
• 🔧 Settings (path: Settings) → Special opportunities → Quick tools).

How to use it:

1. Open Quick Tools and select Document Scanner.
2. Point the camera at the document – the system will automatically take a picture when focusing.
3. Edit the boundaries (if necessary) and click Save.

⚠️ Note: On some models (Redmi) 10A, Redmi 9T) This tool may not be available. To activate it, upgrade the firmware to the latest version or install it. APK-Patch via Xiaomi Community (instructions: link).

💡

If the “Fast Tools” don’t show up in the notification bar, restart your phone or clear the Settings app cache (path: Settings → Applications → Settings → Settings → Clear the cache).

5. Professional scanning: Microsoft Lens application

For those who need the highest quality (for example, to send documents to government agencies), we recommend Microsoft Lens. This application uses AI algorithms from Microsoft that:

• 🎯 Define the boundaries of the document even in case of severe distortions.
• 🖼️ Preserve original colors (important for scans of diplomas, certificates).
• 📎 Support multi-page PDF table-of-tale.

Features of working on Xiaomi Redmi:

• 📌 On Redmi with AMOLED-screens (Redmi) K50, Redmi Note 12 Pro+) When shooting in dark conditions, turn on Night Mode in Lens settings.
• 🔄 To scan bilateral documents (for example, passports), use the autoturn function - it will turn the second page automatically.

📌 Key takeaway: Microsoft Lens is the best choice for official documents where accuracy is important. ~80 MB You need to register a Microsoft account for synchronization.

💡

To scan books or thick documents, use Multipage mode in Microsoft Lens – it automatically equalizes the curvature of pages and removes the shadow from the binding.

6.Scan Optimization: How to Reduce PDF Size and Improve Quality

Even a perfectly scanned document can take up too much space or be not clear enough. Here are 4 working ways to optimize:

Reduce PDF size:

• 📉 Use online services like SmallPDF or iLovePDF. They compress the file without losing quality.
• 📱 Put it on the phone. PDF Compressor (available on Play Market).

Improved clarity of text:

• 🔍 In Adobe Scan, after scanning, click Improve → Sharpness.
• 🖼️ In CamScanner, select a filter. HD pre-conservation.

Conversion to black and white mode:

Colored PDFs weigh 5 to 10 times as much as black and white, so you can translate the scan to B/B.

1. Open the file in Google Drive.
2. Click Open in... → Edit in Docs.
3. Copy the text, paste it into a new document, and export it back to PDF.

Addition of an electronic signature:

If you need to sign a document:

• 🖋️ In Adobe Acrobat Reader, select Fill in and Sign in → Add a signature.
• ✍️ In Xiaomi Quick Apps (on the MIUI 14) has a built-in Signature tool (path: Settings) → Additionally. → Quick tools).

Resolution not lower than 300 DPI (checked in PDF properties).

The file is not more than 5 MB (usually required for download).

- The scan shows the date of the shooting (can be added via MIUI gallery → Edit → Text).-->

FAQ: Frequent questions about scanning on Xiaomi Redmi