Just launched Preventivo Pro: Beautiful quotes with digital signature

Hello Indie Hackers!

I've just published Preventivo Pro, a SaaS I built to solve a problem that too many freelancers, artisans, and small agencies still face today: the nightmare of managing client proposals.

Most people are still stuck using Word or Excel, saving PDFs, and sending endless back-and-forth emails just to get a signed scan back. It's slow and unprofessional.

How Preventivo Pro fixes this:

Speed: You can build a professional quote with all your services in less than 60 seconds.

Mobile-First: Your client instantly receives a secure, responsive link to view the proposal directly from their smartphone.

Digital Signature: The client signs with a finger or mouse. The document gets locked with eIDAS-compliant legal validity, and you get notified in real-time.

The Tech Stack:

I built this using Next.js, NextAuth, Tailwind CSS, Neon PostgreSQL, and Stripe for recurring payments. It also features full multi-language support (Italian, French, German) and a live interactive demo directly on the registration page so users can test the client-signing flow instantly.

Since I just launched, I would absolutely love to get your honest feedback on the onboarding experience, the UI, or the overall concept.

Check it out here: https://preventivopro.org/registrazione

What do you think? Let's chat in the comments! 👇