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 S21 Large Format Book and Document Scanner, Capture A2, 26MP High Resolution, Fingerprint Removal Technologies, Auto-Leveling, Adjustable Height, OCR at

Product ID: 733185596

Details

Colour
black
Exposure control type
Automatic
Media type
USB
Shooting modes
Automatic
Video capture resolution

💡3-Level Adjustable LED Lighting

📐A2 Large Format Capture

📸26MP Ultra-High Resolution

4588 Lei

Duties & taxes included

In stock

Sold byAmazon RomaniaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📚 Elevate your document game with VIISAN S21 — where large meets legendary!

SMART SCAN MAGIC - Auto-flatten curved pages, erase fingerprints, and split double pages seamlessly.
LIGHT IT YOUR WAY - Built-in 3-level LED lighting guarantees crisp scans even in low-light environments.
SCAN BIG SCAN BOLD - Capture expansive A2 documents, maps, and manuscripts with precision and ease.
PIXEL PERFECT DETAIL - 26MP sensor ensures every nuance and texture is preserved in stunning clarity.
WORK COLLABORATE ANYWHERE - UVC/UAC compliant for smooth remote presentations and multi-language OCR for global workflows.

The VIISAN S21 is a professional-grade A2 large format overhead scanner featuring a 26MP high-resolution CMOS sensor, intelligent auto-flatten and fingerprint removal software, and built-in 3-level LED lighting. Compatible with Windows and macOS, it supports multi-language OCR and remote collaboration via UVC/UAC compliance, making it ideal for scanning large journals, manuscripts, maps, and more with exceptional clarity and convenience.

Specifications

ASIN	B09TRFK7D2
Aperture Modes	Automatic
Aspect Ratio	Unknown
Audio Output Type	Speakers
Audio Recording	Yes
Autofocus	No
Best Sellers Rank	#72,852 in Computers ( See Top 100 in Computers ) #97 in Document Scanners
Brand	VIISAN
Built-In Media	MIC
Camera Flash	Built-In
Color	black
Compatible Devices	Laptop
Connectivity Technology	USB
Customer Reviews	4.0 4.0 out of 5 stars (88)
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	Automatic
Flash Type	Internal
Focal Length Description	12.5 millimeters
Focus Type	Fixed Focus
Hardware Interface	USB 2.0
Has Self-Timer	No
ISO Range	100-6400
Item Dimensions D x W x H	21D x 36W x 47.5H centimeters
Item Weight	1 Kilograms
Light Sensitivity	Not Obtainable
Manufacturer	VIISAN
Maximum Shutter Speed	1 Seconds
Media Type	USB
Mfr Part Number	S21
Minimum Shutter Speed	0.0166667
Model Name	A2 Document Camera
Model Number	S21-V
Number of Items	1
Optical Zoom	1 x
Photo Sensor Resolution	23 MP
Photo Sensor Technology	CMOS
Screen Size	7.2E+2 Millimeters
Sensor Type	CMOS
Shooting Modes	Automatic
Video Capture Format	1920x1080@30fps
Video Capture Resolution	1920x1080@30fps
Viewfinder Type	LCD screen
Water Resistance Level	Not Water Resistant
Zoom Type	Zoom óptico

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