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Hand signing documents without a digital tablet

Posted on 2013-11-02
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Last Modified: 2013-12-17
I have many uses including signatures that involve writing on a digital tablet.  Unfortunately, they are expensive and the thought of lugging one around does not excite me.

Is there any kind of stylus that can replicate the effect that the human finger has on a touchpad, thus making it more useful for hand-signing documents?
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Question by:frugalmule
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by:Scott Fell, EE MVE
ID: 39619510
The only thing that comes to mind is livescribe http://www.livescribe.com
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by:frugalmule
ID: 39635172
There has to be something that you can use on a touchpad?
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by:Joe Winograd, EE MVE
ID: 39664857
Here's a free, open source product, available at SourceForge:
http://sourceforge.net/projects/touchpad-hw/

But it supports only the Synaptics touchpad, and you must have the corresponding Synaptics touchpad driver installed, as it calls the Synaptics API. Regards, Joe
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Expert Comment

by:Eoin OSullivan
ID: 39665199
On Apple laptops .. the OSX application called Autograph can capture a signature and embed it in a Word Document or other application
http://tenonedesign.com/autograph.php
There is also an option in the Preview app to take a photo of a signature held in front of the webcam and embed it in a document.

On Windows PCs I am only aware of the USB signature capture devices which can be connected to the laptop
Here is an example of one
http://www.pcconnection.com/IPA/Shop/Product/Detail.htm?sku=4825077
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by:Joe Winograd, EE MVE
ID: 39690422
Hi frugalmule,
Do you have a Synaptics touchpad? If so, have you tried the free TouchPad Handwriting app that I mentioned earlier? If not, what brand of touchpad do you have? Regards, Joe
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Scott Fell,  EE MVE earned 500 total points
ID: 39690506
If you have a touchpad, I use this jquery add on http://thomasjbradley.ca/lab/signature-pad/

It is easy to implement.  You can use your finger or a stylus.   The way I use it is to capture the signature, convert to base64 then encrypt the base64 before storing in the database.  When I want to show the signature, I decrypt and base64.   It works very well.
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