Modern smartphones of the brand Xiaomi have long ceased to be just devices for calls and entertainment, having turned into powerful tools for working with information. Built-in camera capabilities and specialized software allow you to create high-quality digital copies of papers without the need to purchase a separate scanner. This function is especially in demand by students, freelancers and office employees who need to quickly transfer a certificate or contract.
However, many users do not suspect that their device already has an advanced one preinstalled Document scannerthat recognizes text and automatically aligns perspective. In this article, we will look in detail at all the ways to digitize papers on smartphones with shell MIUI i HyperOS, and also look at the settings that will help you achieve the ideal result.
You will learn how to turn an ordinary photo into a professional PDF file in a few seconds. We will touch on the issues of setting resolution, choosing saving formats and using cloud storage for synchronization. Are you ready to turn your gadget into a mobile office?
Built-in scanner in Xiaomi camera and MIUI Scanner
The fastest way to digitize paper is to use the native camera application, which is already optimized for the hardware of your device. In the latest firmware versions, the scanning mode is placed in a prominent place, which simplifies access to the function. You do not need to install third-party software if you are satisfied with the basic functionality of the system.
To start the process, open the application Camera and in the bottom menu find the item More or Modes. From the available options, select the icon Documents or MIUI Scanner. The camera will automatically detect the edges of the sheet, even if it lies at an angle, and take a photo with high sharpness. After capturing the image, the system will offer to crop the excess and apply a filter to improve the readability of the text.
It is important to note that image processing algorithms c Xiaomi are constantly updated. If you have an older phone model, the interface may differ slightly, but the logic of operation remains the same. You can select Color, B&W or Whiteboard mode depending on the type of original.
⚠️ Attention: In some regions or on global firmware, the application MIUI Scanner may be hidden or replaced with the standard Google Lens. If you don't find the scanner icon, check the "Tools" folder on your desktop.
For better background cleaning results, enable the "Remove Shadows" mode in the scanner settings, if available in your software version.
Using Google Drive for scanning
If the built-in tools are not suitable for you for some reason, the ecosystem Google offers an excellent alternative solution right in the Disk application. This method is convenient because the scanned file is immediately saved to the cloud, freeing up phone memory and allowing access from any other device.
The process is as simple as possible: launch the application Google Drive and click on the create a new file button (usually the plus sign in the lower right corner). In the menu that appears, select the option Scan. The camera interface will open, where you can point the lens at the document. The system itself will recognize the edges and take a photo.
The main advantage of this method is the ability to add multiple pages to one file. After the first photo, click the + button on the scanning interface to add the next page. When all the sheets have been captured, click Save, give the file a name and select a folder for storage. The default saving format is PDF.
- 📱 Automatic upload to the cloud immediately after creation.
- 🔍 Ability to manually edit frame boundaries before saving.
- 📄 Combining multiple pages into one multi-page document.
Setting quality and saving formats
The quality of the final file directly depends on the correct settings before shooting. By default, the camera can choose a balance between file size and detail, but for important legal documents it is better to set the maximum parameters. This ensures that small font remains readable even when enlarged.
In the scanning mode settings, pay attention to the parameter Resolution. It is recommended to select a value of at least 300 DPI for text documents and higher for drawings or photographs. It is also worth checking the compression settings: for archiving, select the format JPG, and for printing or sending to government agencies - strictly PDF.
Some users encounter a problem where the text on the scan appears blurry or too dark. This can be solved by manually adjusting brightness and contrast in the editor, which opens immediately after shooting. The sliders allow you to lighten the background and make the letters more contrasty.
⚠️ Attention: The settings interface may change with shell updates HyperOS. If you do not find a specific slider, check the official user manual for your model in the “Camera” section.
To work professionally with graphics, it is important to understand the difference in formats. The table below will help you choose the best option depending on the task.
| File format | Best use | File size | Text quality |
|---|---|---|---|
| Official documents, contracts | Medium | High (vector) | |
| JPG | Fast sending to messengers | Small | Medium (raster) |
| PNG | Documents with graphs and circuits | Large | Maximum (no losses) |
| TIFF | Archival storage of important papers | Very large | Professional |
For sending documents to the tax office or bank, always use the PDF format with maximum lossless compression quality.
Text recognition (OCR) on Xiaomi
One of the most useful functions of a modern smartphone is the technology OCR (Optical Character Recognition), which allows you to convert a text image into an editable format. On devices Xiaomi this feature is often integrated right into the gallery or scanner app.
After you've taken a photo of the document, look for a button Recognize text or icon T in the bottom menu of the editor. The system will analyze the image and highlight text blocks. You can copy the content to the clipboard, translate it into another language, or immediately export it to a text file .txt or document Word.
The accuracy of recognition depends on the clarity of the font and lighting. Handwritten text is recognized worse than printed text, but modern neural networks cope with it quite well. For complex documents with tables, it is better to use specialized applications, since the built-in scanner can disrupt the column structure.
The secret of high OCR accuracy
Use the "Document" mode with the "Increase Contrast" filter before starting recognition. This will remove gray spots from the paper, and it will be easier for the algorithm to highlight the letters.
Third-party applications for advanced functions
Despite the power of the built-in tools, sometimes you need more specific functions, such as batch processing of hundreds of pages or integration with corporate CRM systems. In such cases, third-party solutions from the store come to the rescue. Google Play.
The market leaders are applications Adobe Scan, CamScanner i Microsoft Lens. They offer improved background cleaning algorithms, automatic file naming by date and document type, and advanced folder organization. Installing such software is justified if you work with documents every day.
When choosing a third-party application, pay attention to the permissions it requests. A good scanner only needs access to the camera and storage. If a app requires access to contacts or a microphone without a clear need, this is a reason to think about the security of your data.
- 🚀 Adobe Scan: ideal for creating portfolios and working with PDF forms.
- 📷 CamScanner: the best choice for batch scanning and removing watermarks.
- 🏢 Microsoft Lens: integrates perfectly with Office 365 and OneNote.
Tips on lighting and document positioning
Even the most expensive smartphone will not be able to make a high-quality scan if the shooting conditions are violated. Light is critical: avoid harsh shadows from your hands or phone that might obscure some of the text. It is best to use diffused daylight or two lamps located on the sides of the document.
The position of the phone also matters. Keep the device strictly parallel to the plane of the table to avoid keystone distortion. Although the software can straighten the perspective, the original photo taken at the right angle will always be sharper at the edges.
Use a dark background under the document. If you place a white sheet of paper on a white tablecloth, automatic edge detection may not work correctly. The contrast between the edge of the paper and the surface of the table helps the algorithms crop the image faster and more accurately.
⚠️ Attention: Never use flash when scanning glossy documents or laminated certificates. The glare from the flash will make part of the text unreadable, and it will be impossible to restore it.
☑️ Perfect scan in 1 minute
Frequently asked questions (FAQ)
Why does my scan turn out cloudy or blurry?
Most often the reason is that the camera lens is dirty or my hands are shaking at the time of shooting. Wipe the lens with a soft cloth and try to hold the phone still for 1-2 seconds after pressing the shutter button. Also check if the macro mode is turned on if you are shooting at close range.
Is it possible to scan documents without the Internet on Xiaomi?
Yes, the built-in camera application and MIUI Scanner work completely offline. Text recognition (OCR) also works offline if a language pack has been downloaded previously. The Internet is only required to send the file or save it to the cloud.
How to remove the black background from a scan taken in the dark?
Open the image in the gallery or scanner editor, select filters and apply the “Whiteboard” or “Increase Contrast” mode. This will invert the colors and make the background white and the text black, eliminating gray casts from poor lighting.
Where are scanned files stored by default?
Files are typically saved in a folder MIUI/scanner or DCIM/Camera internal memory. If you used Google Drive, the files are located in the My Drive section in the folder you selected when saving.
Does the Xiaomi scanner support multi-page PDFs?
Yes, in Documents mode you can shoot multiple sheets sequentially. Before the final saving, the system will offer to view all pages and combine them into one PDF file.