We built PDF Invoice Pro because we lived the problem ourselves. As freelancers and consultants, we watched colleagues lose hours each month to invoice software that required lengthy account setups, charged $15–$50 per month for basic PDF exports, watermarked every document on the free tier, and uploaded sensitive financial data to servers we couldn't audit. The market was dominated by bloated invoice software designed for enterprises — not for the solo developer invoicing their first client or the photographer billing a weekend shoot.
The gap was obvious: there was no truly free, genuinely private, and immediately usable professional invoice creator built for people who just needed to send a bill and get back to work. So we built one. No account required. No subscription. No watermarks. No data harvesting.
Our mission is to democratize professional invoicing — making the same quality tools available to a 19-year-old freelance designer in Karachi that a Fortune 500 finance team has in New York, at zero cost.
Slipstrim is an AI-native business platform built for freelancers, contractors, and small agencies who want to run their entire back office without the busywork. Instead of bolting AI onto old invoicing software, Slipstrim is built AI-first: describe a job in plain language and the platform drafts line items, quantities, units, and pricing instantly — across invoices, quotes, and every other document type.
Beyond invoicing, Slipstrim brings together the tools a growing business actually needs in one place: a built-in CRM for contacts and deals, SEPA QR payments for instant bank transfers, automated payment-reminder emails, and real-time revenue analytics — all wrapped around an AI assistant that can answer questions about your business ("What's outstanding this month?") using your live data.
Slipstrim also supports custom units (m², hours, lots) for industries like construction, design, and services where standard invoicing tools fall short, plus country-specific fiscal compliance (Slovenia, Czech Republic, Croatia) for businesses that need verified, government-registered documents.
Key features:
AI-drafted line items, quotes, and invoices from plain-language descriptions
Built-in AI assistant for live business Q&A (revenue, customers, deadlines)
SEPA QR code payments and automated email follow-ups
Built-in CRM and contact management
Revenue analytics dashboard
Custom billing units (m², hr, lot) for service and trade businesses
Country-specific fiscal/tax compliance verification
Expandable app ecosystem — install built-in apps or build your own
Free plan available, no credit card required, GDPR compliant
Best for: Freelancers, contractors, consultants, and small agencies who want invoicing, CRM, and business insights handled by AI instead of managing multiple disconnected tools.