Dimensions of scanner pad. tech requirements for a thumb drive. do i need another license for laptop just to transfer to desktop via thumb drive??

Hello, the A2 scanner mat dimensions is 660 x 480 mm. You refer to "thumb drive" is a manual button, its usage method can view the following video.

If i scan an a3 document, what is the dpi resolution? what about an a2 document? 300 dpi? 600 dpi?

I don't know the answer. If you email them, they are very responsive. It isn't a high resolution. I was trying to duplicate part of a near A2 document, 22 x 6. It came out readable and all, but was too small to display. So, I tried to do it in parts, and then enlarging the parts on my older 3-in-1 - but I could never get the parts to align in size. After many attempts I gave up and took the document to a wedding photographer who put it on the floor and climbed a ladder to get it all in actual size. The photo lab, which I had tried first, wanted it left and wouldn't allow me to make an appointment so I would be on hand while they did it. The photographer was the best bet. Sorry for not knowing the answer; I think they would tell you if that is your guiding principle.

How to connect and use this large format scanner?

Hello, The VIISAN book scanner is connected to the computer via USB. Then go to the VIISAN official website to download the OfficeCam software. After installation, you can use the scanner according to the user's instructions. If you have other questions, you can send us an email at Amazon, we will reply you in time.

Is the the file that is created is it at 100% accurate scale wise??

As far as I can tell, the software is not aware of the height you set the camera, so it is not.

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VIISAN Large Format Book & Document Scanner, Capture Size A2/A3, 26MP USB Document Camera with Auto-Flatten, Fingerprint Removal Technologies, Multi-Language OCR, Compatible with Windows & macOS

Product ID: 422168206

Details

Color
a2
Exposure Control Type
Automatic
Media Type
USB
Shooting Modes
Automatic
Video Capture Resolution
1080p at 30fps

💡3-level adjustable LED lighting

📐A2/A3 large format capture

📸26MP ultra-high resolution

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Description

📚 Elevate your document game with VIISAN’s pro-grade large format scanner!

SCAN BIG SCAN BOLD - Capture oversized documents up to A2 size with precision and ease.
CRYSTAL CLEAR DETAIL - 26MP sensor plus software-enhanced 600 DPI for stunningly sharp scans.
SMART AUTO FLATTEN TECH - Automatically smooths curved pages and removes fingerprints for flawless images.
MULTILINGUAL OCR POWERHOUSE - Convert scans into editable PDFs, Word, Excel, EPUB, and TXT effortlessly.
SEAMLESS REMOTE COLLABORATION - UVC/UAC compliant for live presentations and video recording during meetings.

The VIISAN S21 is a professional-grade large format document scanner designed for A2/A3 size materials. Featuring a 26MP CMOS sensor and software-enhanced 600 DPI resolution, it delivers ultra-high-quality scans. Its intelligent software auto-flattens curved pages, removes fingerprints, and supports multi-language OCR for converting scans into editable formats. Equipped with 3-level LED lighting and USB connectivity, it’s compatible with Windows and macOS (x64/x86 only) and supports remote collaboration via video conferencing. Ideal for professionals needing precise, large-scale digitization with smart automation.

Specifications

ASIN	B09TRFK7D2
Aperture Modes	Fixed
Aspect Ratio	Unknown
Audio Output Type	USB
Best Sellers Rank	#84,829 in Office Products ( See Top 100 in Office Products ) #79 in Document Scanners
Brand	VIISAN
Built-In Media	MIC
Camera Flash	Built-In
Color	a2
Compatible Devices	Laptop
Connectivity Technology	USB
Customer Reviews	4.1 4.1 out of 5 stars (102)
Effective Still Resolution	26 mp
Exposure Control Type	Automatic
File Format	JPG, PDF, Excel, WORD, TEXT, EPUB, MP3, WAV, AVI, MP4, FLV
Flash Modes Description	Built-In
Flash Type	Internal
Focal Length Description	12.5 millimeters
Focus Type	Fixed Focus
Hardware Interface	USB 2.0
Item Dimensions D x W x H	8.27"D x 14.17"W x 18.7"H
Item Weight	1 kg
Light Sensitivity	Not Obtainable
Manufacturer	VIISAN
Maximum Shutter Speed	1 seconds
Media Type	USB
Mfr Part Number	S21
Minimum Shutter Speed	0.02
Model Name	A2 Document Camera
Model Number	S21-V
Photo Sensor Resolution	23 mp
Screen Size	7.2E+2 millimeters
Sensor Type	CMOS
Shooting Modes	Automatic
Unit Count	1 Count
Video Capture Format	1920x1080@30fps
Video Capture Resolution	1080p at 30fps
Viewfinder Type	LCD screen
Warranty Description	1 year warranty
Water Resistance Level	Not Water Resistant
Zoom Type	No Zoom

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₩1169368

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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