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.

ASIN	B09TRFK7D2
Aperture Modes	Automatic
Audio Output Type	Speakers
Audio Recording	Yes
Autofocus	No
Best Sellers Rank	#91,916 in Computers ( See Top 100 in Computers ) #153 in Document Scanners
Brand	VIISAN
Built-In Media	MIC
Camera Flash	Built-In
Color	black
Colour	black
Compatible Devices	Laptop
Connectivity Technology	USB
Customer Reviews	4.3 out of 5 stars 74 Reviews
Effective Still Resolution	26 MP
Exposure Control Type	Automatic
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
Media type	USB
Minimum Shutter Speed	0.0166667
Model Name	A2 Document Camera
Photo Sensor Resolution	23 MP
Photo Sensor Technology	CMOS
Screen Size	7.2E+2 Millimeters
Sensor Type	CMOS
Shooting Modes	Automatic
Shooting modes	Automatic
Video Capture Format	1920x1080@30fps
Video Capture Resolution	1920x1080@30fps
Video capture resolution	1920x1080@30fps
Viewfinder Type	LCD screen
Water Resistance Level	Not Water Resistant
Zoom Type	Zoom óptico
Zoom type	Zoom óptico

VIISAN S21 Large Format Book Scanner, Capture Size A2, 26MP High Resolution, Auto-Flatten & Fingerprint Removal Technologies, Adjustable Height, Multi-Language OCR, Run On Windows & macOS

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