GetDigiSigner Portable Software Free. Itis a portable program that allows users to view PDF documents and add signatures to it. You can easily verify the signatures of the PDF files. As it is portable, you can copy it to a flash drive or any other external device and use it on different computer systems. It is very useful for signing business contracts and PDF invoices. All you have to do is to open the PDF file and the DigiSigner will create a signature on it. The signature may be visible or invisible, depending on how you want it.
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