How to scan documents on Xiaomi phone: from basic methods to professional life hacks

Scanning documents through a Xiaomi smartphone has long been an alternative to bulky MFPs โ€“ modern models (from the budget Redmi Note to the flagship Xiaomi 14) cope with the task as well as specialized equipment. But few people know that the quality of the scan depends not only on the camera resolution, but also on the right software, lighting and even the angle of shooting. In this article, we will analyze all the available methods โ€“ from built-in MIUI tools to hidden functions of the Google Drive application, and also reveal professional secrets that will turn your Xiaomi into a portable premium scanner.

We'll focus on the common mistakes: why scans are curved, how to avoid glare on glossy paper, and what to do if a document doesn't fit in the frame. And for older models (like the Redmi 5 or Mi A2), we'll give you workarounds when standard features are not available. At the end, we'll give you a comparative table of methods for speed, quality and convenience so you can choose the best option for your tasks.

1. built-in Scanner app in MIUI: where to find and how to use

Since MIUI 12, Xiaomi has introduced its native Scanner app, which many users donโ€™t notice โ€” itโ€™s hidden in the Tools folder or searchable โ€” and uses Xiaomiโ€™s algorithms to automatically trim edges, correct perspective, and improve readability, with the main benefit of being offline and no advertising.

To take advantage of it:

  • ๐Ÿ” Open a search by phone (swipe down on the home screen) and type โ€œScannerยป.

The result is saved in PDF or JPEG format (selected) in the Scanner folder in internal memory, a unique feature: in the application settings, you can turn on the Smart Scan mode, which automatically recognizes the type of document (passport, receipt, business card) and selects the optimal shooting parameters.

โš ๏ธ Attention: On models with MIUI No native scanner is 11 or below, in which case use alternative methods from the following sections.

๐Ÿ“Š What version? MIUI you use?
MIUI 12/13/14
MIUI 11 or older
I don't know.
Another firmware

2.Google Drive: a hidden scanner with cloud storage

Few people know, but Google Drive has a built-in document scanner that is as good as specialized applications, and the advantages of this method are: automatic upload to the cloud, support for OCR (text recognition) and the ability to share scans. Minus โ€” you need an Internet connection to synchronize.

Instructions:

  1. Open the Google Drive app on your Xiaomi.

To improve the outcome:

  • ๐Ÿ”ฆ Turn on the flash if the document is dark or lighting is weak.
  • ๐Ÿ“ Use hand-trimming if the automatic trimming has worked inaccurately.
  • ๐Ÿ” Activate the option โ€œRecognize textโ€ to search for words inside PDF.

Make sure the document is on a flat surface.|

Turn off HDR mode in camera settings|

Make sure there is enough space in the cloud.|

Use natural light (avoid yellow light bulbs)-->

โš ๏ธ Note: If the scan is blurry, clean the camera lens of dust โ€“ on Xiaomi with a retractable camera (for example, Mi Mix 3) this is especially true.

3. Applications from third developers: top-3 Xiaomi

If the built-in tools donโ€™t work, consider third-party apps. We tested dozens of options and selected the top three for Xiaomi devices, given the balance of quality, speed and lack of advertising.

AnnexAdvantagesDeficienciesRatings.
CamScannerOCR in 60+ languages, cloud storage, manual perspective correctionPaid subscription for HD-export4.8/5
Adobe ScanIntegration with Adobe Acrobat, Automatic Text ImprovementRegistration is required4.7/5
Microsoft LensFree, export to Word/Excel, support for tablesLess customization than competitors4.6/5

To install, go to Google Play and type in the name of the app. After installing:

  1. Open the app and allow access to the camera and storage.
  2. Select the Document mode (in some applications, Scan).
  3. Take a picture of the sheets. Most programs automatically combine them into a single PDF.
  4. Edit the result: cropping, rotation, filters (for example, "Black and white" for better readability).

๐Ÿ’ก

CamScanner has a hidden Smart Lighting feature, which you can turn on in your settings to automatically adjust the shadows on a document in low light.

4.Scan through Notes (Notes): Lifehack for fast scans

The MIUI Notes app can not only save text, but also scan documents, and it is suitable for quick scans of checks, receipts or small sheets, which are inferior to specialized tools, but faster.

How it works:

  1. Open your notes and create a new note.
  2. Click on the + icon โ†’ select Scan.
  3. Point the camera at the document. The app will automatically take a picture when it detects edges.
  4. Save the result โ€“ it will be attached to the note in the form of an image.

Features of the method:

  • ๐Ÿ“Ž The scan is attached to a note that is convenient for the organization (for example, you can create a folder "Documents 2026ยป).
  • ๐Ÿ”„ No exports to PDF โ€” only JPEG or PNG.
  • ๐ŸŽจ You can draw over the scan (for example, emphasize important lines).

โš ๏ธ Attention: There's no perspective correction in the notes. If the document is crooked, the scan will be distorted.

5. Professional chips: how to make a scan perfect

Even with the best software, the results can be disappointing, if you don't take into account the technicalities. Here are 7 rules that professionals use to scan documents on smartphones:

  1. Lighting: Use two light sources from different sides (like table lamps) to avoid shadows. Natural light from the window is the best option, but avoid direct sunlight.
  2. Shooting angle: Keep the camera strictly perpendicular to the document. On Xiaomi with a wide-angle camera (for example, Redmi Note 12 Pro+), you can use zoom ร— 1.5 to reduce distortion at the edges.
How to scan multi-page documents without errors?
1. Use the CamScanner's Batch Mode, which automatically numbers the pages. 2. For books, put your smartphone on a tripod or stable surface to avoid the "wave effect" of shooting. 3. If the document is stapled, take a picture of the left half of the page, then the right half, and then combine it in the editor.

Xiaomi models with a telephoto lens (such as the Xiaomi 13 Ultra) can use an optical zoom ร— 2 or ร— 3, which will reduce distortion compared to shooting with the main camera. But don't overdo it: digital zoom spoils quality.

6. Problem solving: blurry, glare, curved scans

Even if you follow all the rules, you can have defects, and let's look at the typical problems and how to fix them.

Problem.Reason.Decision
Blurred textTrembling hands, weak lighting, dirty lensUse a timer or a tripod. Clean the camera with microfiber.
The glare on the glossy paperDirect light from lamp or sunRemove at an angle of 30-45 ยฐ or cover the document with matte glass.
Curved edgesNon-perpendicular shooting, curved documentEnable the option โ€œPerspective Correctionโ€ in the scanner settings.
Scan's too dark.Weak flash, dark documentIncrease exposure in manual camera mode or use an external light source.

If a document doesnโ€™t fit into a frame (e.g., an A3 diploma), take a photo of it in parts, and then combine it in an editor (Adobe Scan has a feature called Stitch Scans). For Xiaomi with an ultra-wide-angle camera (e.g., Poco X5 Pro), you can use Panorama mode, but the quality will be lower than with step-by-step shooting.

๐Ÿ’ก

Use the mode to scan passports or IDs ยซID-Map in CamScanner โ€“ it automatically crops the document to the standard ISO It improves the contrast of the text.

7. Alternative methods: scanning without a phone

If your Xiaomi is temporarily unavailable (for example, it is dead), and the document needs to be scanned urgently, use alternative methods:

  • ๐Ÿ’ป Scanning through a computer: Connect Xiaomi to a PC USB, open the folder DCIM and drag a photo of the document to Adobe Acrobat or iLovePDF online service for conversion to PDF.
  • ๐Ÿ–จ๏ธ MFP or printer: If there is a multifunction device nearby, send the document to print in format PDF (Most modern printers support scanning. USB-accumulator).
  • ๐ŸŒ Online services: Upload a photo of the document to sites like Online2PDF โ€” They convert the image into a scan with perspective correction.

For Xiaomi Mi Share-enabled owners (like the Redmi Note 11): You can scan a document on another phone (a friend or colleague) and instantly forward it to yourself through this feature without losing quality.

Comparative table of scanning methods

MethodQuality.Speed.Internet is requiredBetter for you.
MIUI's native "Scanner"4/55/5No.Quick scans, offline jobs.
Google Drive4/54/5Yes (for synchronization)Cloud Storage, OCR
CamScanner5/53/5No (but there's a cloud)Professional scans, OCR in many languages
Notes (Notes)3/55/5No.Short notes, checks.
Adobe Scan5/54/5Yes (for some functions)Work with PDF, integration with Adobe

๐Ÿ’ก

To scan color documents (such as certificates or diplomas), turn off the black and white filter in the scanner settings and set the maximum resolution, which will retain the original colors, but increase the file size.

FAQ: Frequent questions about scanning on Xiaomi

Can I scan documents on Xiaomi without installing additional apps?
Yes, there are two built-in ways to do this: the Scanner app (available on MIUI 12 and later), the Scan feature in Notes, both of which do not require the Internet and store scans locally.
How to scan an A3 document on Xiaomi?
There are three options: Take a photo of the document piece by piece and combine it in an editor (like CamScanner). Use Panorama mode** on the camera, but the quality will be lower. Put the document on the floor, stand on a chair and take a picture on top (suitable for Xiaomi with a wide-angle camera).
Why is the scan curved, even though the document is flat?
This is due to: Wide-angle camera distortion (common with Redmi with 120ยฐ+ viewing angle); auto-short algorithm malfunction (especially on older versions of MIUI); non-perpendicular angle of shooting (even 5ยฐ deviation is enough for distortion); Solution: manually adjust the angles in the scanner editor or use applications with the "Perspective Correction" function (Adobe Scan or CamScanner).
How to improve the quality of the scan on older Xiaomi models (for example, Redmi 4X)?
For devices with a camera below 12 MP: Use external lighting (two lamps on the sides). Shoot in JPEG format with maximum resolution (in the camera settings, select High quality). Apply post-processing: increase contrast and sharpness in Snapseed or Lightroom Mobile. Turn off digital zoom - it spoils the detail.
Can I scan my documents in the dark?
Yes, but with reservations: Turn on the flash and set the maximum brightness of the screen (to illuminate the document), use the manual camera mode (Pro Mode) and increase the ISO to 800-1600, but no higher - there will be noise. In applications like CamScanner, activate the option "Low Light Enhancement".