How to scan documents on Android Xiaomi Redmi

The modern smartphone has long since ceased to be a means of communication, becoming a powerful pocket office that can replace a bulky printer with scanner function. Owners of Xiaomi and Redmi devices often face the need to quickly send a contract, certificate or lecture summary in digital form without resorting to specialized equipment. Fortunately, the Android operating system in conjunction with the shell of MIUI or HyperOS provides all the necessary tools right out of the box.

You don't have to search for and install heavy third-party apps if you just need to save text from an A4 sheet. Standard image processing algorithms allow you to automatically define the boundaries of a document, align perspective and improve text readability. This saves time and traffic, since finished files weigh significantly less than conventional photos taken on the main camera.

In this article, we will take a look at all the available ways to digitize paper media on your gadget. We will look at the hidden features of the standard Camera application, the capabilities of the built-in scanner in system tools and the advantages of cloud services. PDF-High quality files in a matter of seconds.

Use of built-in scanner in the Camera application

The fastest way to digitize a document on Xiaomi and Redmi smartphones is to use a special mode in the standard Camera app, which the developers implemented directly into the shooting interface so that users do not have to search for individual utilities. To start the process, you just need to open the camera app and select Documents or Scanner mode from the bottom menu, depending on the firmware version.

Once you switch to this mode, point the lens over a piece of paper, the system automatically recognizes the rectangular boundaries of the document, even if it is at an angle, and the screen will have a yellow or blue frame indicating the scanning area, and you just have to press the shutter button, and the phone will take a series of pictures, process them, remove the shadows and align the geometry.

This is especially useful when you need to quickly save several pages in a row, the camera allows you to do continuous scanning, automatically switching to the next sheet after saving the previous one, the finished result is saved in the gallery as an image or immediately converted to PDF if you select the appropriate option in the mode settings.

⚠️ Note: When scanning through the camera, try to avoid glare from lamps or the sun on the glossy surface of the paper, as the algorithm may misdetect the boundaries of the text.

The quality of the final file depends on the lighting and cleanliness of the lens. Wipe the camera before starting and ensure uniform light. Documents Mode often has its own filtering setting, allowing you to switch between color mode, black and white and blackboard mode for better readability of small print.

Scanning through the standard “Scanner” application

Most modern Redmi and Xiaomi models have a separate system application called the Scanner, which is a more advanced version of the feature from the camera and is often hidden in the Tools folder on the desktop, which is designed to work with text and code, ignoring unnecessary background details.

When you launch the application, you will see an interface with large buttons for different types of scanning: “Document», «QR-Code, Business Card. You can use Document mode to access batch processing, which means you can shoot a multi-page contract, and the system will collect all the pages into a single file, and then you can edit it, you can cut the extra fields, you can turn the page, you can change the contrast.

One of the key features of the system scanner is that it supports OCR (optical character recognition). Once you save the image, you can start text recognition to copy the contents of the document to the clipboard, an indispensable feature for students and office workers who need to transfer text from paper to digital without manual reprinting.

• 📄 Packet scanning: the ability to create multi-page PDF-files in one session.
• 🔍 Text recognition: built-in OCR It allows you to extract text from images in several languages.
• 🎨 Processing filters: Automatic grey background removal and ink contrast enhancement.

The application interface is minimal, which reduces the load on the processor and battery. Unlike third-party counterparts, the system scanner does not require unnecessary permissions and does not show intrusive advertising.

Using Google Drive to Digitize

If standard tools don't work for you, you can always turn to the Google ecosystem. Google Drive is pre-installed on Android devices and has a built-in scanning feature that often works even more accurately than standard vendor solutions. This cloud storage allows you not only to create copies, but also to send them to the cloud immediately.

To scan a document, open the Drive app, click Add (usually a plus in the corner of the screen) and select Scan. It opens a camera interface that works similarly to the system: finds edges, removes distortion. The main advantage here is instant synchronization. After scanning the document in the office, you can open it on your computer in a minute.

Google Drive also offers powerful post-processing tools: You can change color (color, black and white, photo), crop an image, and even recognize text from a picture directly in the app. Files are saved in PDF format, which is the standard for business correspondence.

Using the cloud service is especially important when working with large amounts of data. You do not risk losing scanned files when your phone breaks or accidentally deletes. In addition, searching the content of documents in Google Drive works very effectively, finding the desired files by keywords inside the text.

Third-party applications for professionals

For users who need advanced features such as editing scanned pages, adding watermarks or advanced table recognition, you should pay attention to specialized software. The market leaders remain Adobe Scan, CamScanner and Microsoft Lens. These applications turn a smartphone into a full-fledged portable scanner.

Adobe Scan stands out for its integration with the PDF ecosystem and the ability to automatically recognize document structures such as receipts or business cards. The app itself offers to save contacts from a business card or data from a check. Microsoft Lens is ideal for those who work with Word and Excel, as it can convert a photo of a table into an editable file.

Installing a third-party app is worthwhile if you scan documents on a large scale every day, offering cloud profiles, digital signatures, and more flexible export settings, but it’s worth remembering that many advanced features in these apps are often hidden behind paid subscriptions.

• 🚀 Automation: smart scenarios for business cards, boards and checks.
• 📝 Conversion: Direct export to editable Office formats.
• ☁️ Integration: Linking to Dropbox, OneDrive, Evernote and Enterprise Servers.

⚠️ Warning: Free versions of popular scanners can add watermarks to documents or limit the number of scans per day, read the terms of use carefully.

When selecting third-party software, consider the permissions requested. The scanner does not need access to your contacts or location to work with the camera. Restricting access rights will increase the security of your personal data that may be contained in the scanned documents.

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Tip: To scan old faded documents, use the Magic Color mode in third-party apps – it restores contrast and makes pale text readable.

Customization of quality and preservation formats

The quality of the scanned document is critical for its future use. In the settings of any of the methods described above, you can find resolution and format parameters. For text documents, the best choice is a high contrast black and white mode, which reduces the file size and improves readability on the screen.

If you scan documents with color graphs, signatures or seals, be sure to choose color mode. Resolution is recommended to be set at least 300 DPI (dots per inch) if the application allows you to adjust this setting. Lower values can make small print unreadable when zooming.

The choice of the format of saving depends on the purpose. PDF is definitely preferred for printing and official sending. This format fixes the layout and looks the same on any device. JPG or PNG format should be chosen only for fast sending in messengers, where quality is not a priority, but low file weight is important.

Xiaomi’s system settings also offer image compression options: Make sure you have Original mode or minimal compression if you plan to print documents later on. Excessive compression introduces artifacts that can distort the numbers in financial documents.

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The optimal balance between quality and file size is achieved by saving text documents in black and white PDF with a resolution of 300 DPI.

Frequently Asked Questions (FAQ)