EDS, who can explain?

Question

Documentation

I work as a programmer (backend) in a small company and at a meeting we were told that documents from dozens of companies will pass through our company, the number will increase over time and the responsibility of creating a simple WEB interface falls on our shoulders, after googling a little I found out that EDS is used to sign documents on computer and sending to the state. authorities, but questions arose:
1) The purchase of an EDS will allow and legally legal. person to sign documents from other companies? The company seeks in this way to save other companies from paperwork and make money on it
2) If so, how many companies can be worked with in this way?
3) Will it be possible to sign them using PHP, there is little information on this topic, what if our general director blurted out without thinking?

Answer 1

Doubtful earnings: a certain sharaga will be able to sign any document on behalf of the company. Including a document stating that the company assumes certain obligations. The benefits of such an approach should outweigh the risks, of which there are many. You can also sign a document in PHP, in the worst case, you will have to implement signing by hand.

Answer 2

1 no, there is an option for the tax office where you get a license for services like accounting, you buy software and you can sign papers in it and send it through it, but only to the tax office
2 if you sign everything, then everyone needs their own key
3 it’s not clear why they should be signed in php the software is already ready and generally convenient for an accountant.