VIISAN Large Format Book & Document Scanner S21
Rating
Product Overview
The VIISAN Large Format Book & Document Scanner S21 captures A2/A3 size documents with its 26MP USB document camera. Features include auto-flattening, fingerprint removal, and multi-language OCR. Compatible with Windows & macOS, it's ideal for scanning books, documents, business cards, and 3D objects. The scanner has an adjustable height and a 90-degree foldable hinge. It also supports remote collaboration and video recording.
Product Images
Product Specifications
Size & Weight
Features
Automatically detects the size of the document being scanned. No need to manually set the size each time you scan documents of different sizes. Useful for quickly scanning mixed-size documents like receipts and business cards.
This scanner does not automatically detect document size. Users need to manually adjust the scanning area in the software. This can be a minor inconvenience, especially when scanning documents of varying sizes.
Simultaneously scans both sides of a document in a single pass. Efficiently digitizes double-sided documents such as contracts and reports. Significantly reduces scanning time.
The VIISAN S21 does not support automatic double-sided scanning. Each side of the document must be scanned separately, which can be time-consuming for multi-page documents. This is a significant limitation for users who frequently scan double-sided documents.
Automatically determines whether to scan a document in color or monochrome based on its content. No need to manually switch settings for documents containing both color and black-and-white elements. Streamlines the scanning process.
The scanner's software can automatically detect whether a document should be scanned in color or monochrome based on its content. This feature streamlines the scanning process and saves time by eliminating the need for manual adjustments.
Enhances the clarity of text in scanned images, making it easier to read. Improves the legibility of documents with faint or unclear text. Beneficial for archiving old or low-quality documents.
The VIISAN S21 includes a text enhancement function that improves the clarity of scanned text. This is particularly useful for archiving old or low-quality documents where the text may be faint or unclear, making it easier to read.
Automatically corrects skewing and distortion in scanned images. Produces clean, professional-looking scans even if the original document is slightly misaligned. Saves time by eliminating the need for manual adjustments.
The scanner's software automatically corrects skewing and distortion in scanned images. This feature ensures that scans are clean and professional-looking, even if the original document is slightly misaligned during the scanning process.
Allows scanned documents to be directly uploaded to cloud storage services like Google Drive or Dropbox. Enables easy access to scanned documents from anywhere. Convenient for sharing documents with others or backing them up.
The VIISAN S21 does not support direct uploading to cloud storage services like Google Drive or Dropbox. Scanned images must be saved to a computer first and then manually uploaded to the cloud, which adds an extra step to the process.
SHOPSTAFF Rating Score
The VIISAN S21 is a decent overhead scanner for large documents and books. Its software offers useful features like auto-flattening and OCR, but the image quality and ease of use may not match higher-end flatbed scanners. It's suitable for home archiving and occasional use.
Brand & Manufacturer Details
Key Highlights
- Large format scanning capability (A2/A3)
- Auto-flattening and fingerprint removal
- Multi-language OCR support
- Cost-effective for large document scanning
Considerations
- Lighting needs to be even for best results
- Software can be difficult to use at times
- Not recommended for very glary papers
Recommended For
- Hobbyists
- Families with large documents to archive
- Users needing occasional large format scanning
- Those who need OCR function
Not Recommended For
- Professionals requiring high-speed scanning
- Users needing advanced color calibration
- Those needing to scan delicate materials
Suitable For
- Scanning newspapers
- Archiving maps
- Digitizing books
- Remote meetings
Not Suitable For
- High-volume office document management
- Scanning blueprints
- Professional graphic design
- none in particular
Frequently Asked Questions (FAQ)
Q.Is this scanner suitable for scanning large documents like newspapers and maps?
Q.What is the scanning quality like?
Q.Does the scanner have any special features for scanning books?
Q.Can I scan in dark environments?
Q.Is the software compatible with my computer?
Q.How easy is the software to use?
Q.Can the scanner convert scanned documents into editable formats?
Q.Is this scanner good for scanning paintings?
Q.What is the warranty?
Q.Is it easy to adjust brightness and saturation?
SHOPSTAFF Rating Ranking
High-speed document, photo & receipt scanner with a large touchscreen, Wi-Fi, and 100-page auto document feeder.
| Scanner Type | Business Card, Document | Scanning Resolution | 600 dpi |
| Scanning Speed | 45 ppm | Color Depth | - bit |
| Grayscale Levels | - levels | Document Size | - |
| Automatic Document Feeder (ADF) | Yes | ADF Capacity | 100 sheets |
| Interface | USB, Wi-Fi | Power Consumption | 17 W |
Professional desktop scanner with fast scan speeds, duplex scanning, wireless connectivity, and touchscreen.
| Scanner Type | Document | Scanning Resolution | 300 dpi |
| Scanning Speed | 40 ppm | Color Depth | 48 bit |
| Grayscale Levels | – levels | Document Size | letter, legal |
| Automatic Document Feeder (ADF) | Yes | ADF Capacity | 80 sheets |
| Interface | Ethernet, USB, Wi-Fi | Power Consumption | 4.7E+2 W |
High-speed document, photo & receipt scanner with touchscreen, Wi-Fi, USB, and 100-page ADF for Mac or PC.
| Scanner Type | Business Card, Document | Scanning Resolution | 600 dpi |
| Scanning Speed | 45 ppm | Color Depth | 24 bit |
| Grayscale Levels | - levels | Document Size | - |
| Automatic Document Feeder (ADF) | Yes | ADF Capacity | 100 sheets |
| Interface | USB, Wi-Fi | Power Consumption | 17 W |
Professional desktop scanner with fast scan speeds, duplex, wireless, and a large touchscreen for easy operation.
| Scanner Type | Document | Scanning Resolution | 300 dpi |
| Scanning Speed | 60 ppm | Color Depth | 48 bit |
| Grayscale Levels | - levels | Document Size | - |
| Automatic Document Feeder (ADF) | Yes | ADF Capacity | 100 sheets |
| Interface | Ethernet, USB, Wi-Fi | Power Consumption | - W |
Epson
Workforce ES-580W Wireless Color Duplex Desktop Document Scanner
$359.99(incl. tax)Amazon price as of 2025-09-29
Wireless color duplex desktop document scanner with 100-sheet ADF and 4.3" touchscreen for easy scanning.
| Scanner Type | Document | Scanning Resolution | 1200 dpi |
| Scanning Speed | 35 ppm | Color Depth | 30 bit |
| Grayscale Levels | - levels | Document Size | - |
| Automatic Document Feeder (ADF) | Yes | ADF Capacity | 100 sheets |
| Interface | Wi-Fi | Power Consumption | 580 W |
