Your clients, common items and invoice numbers live only in this browser — nothing is uploaded. Edit them here, or export a backup to move them to another device.
Everything on this page — clients, item catalog, invoice numbers and saved documents — is stored only inside this browser, on this device (in its “local storage”). FastInvoicePDF has no accounts and no database, so none of it is ever uploaded to our servers and we cannot see or recover it.
Protect yourself: export a backup file now and then (see “Backup & restore” below) and keep it somewhere safe. Your finished PDFs are the real record — keep those too.
Pick any of these from “Saved clients” when you create a document.
Services and prices you bill often. Click one on the invoice form to add it as a line.
The last number you used for each document type. The next one starts right after it (INV-0007 → INV-0008).
Browsers allow roughly 5 MB per site for this kind of storage. Logos are saved once and shrunk to 400 px wide, so they stay small even across many documents.
Getting full. Export a backup, then delete old documents you no longer need — saving will fail once the browser limit is reached.
Export everything above, plus your saved documents, as one JSON file, or load a file you exported earlier. How does this work?
Importing merges with what you have: clients and items with the same name are updated, and numbers keep the higher value.
Think of the backup file as a portable copy of this page. It is a plain .json text file you control.
fastinvoicepdf-backup-DATE.json — it contains your clients, items, saved documents (with logos) and last numbers..json file.Good to know: import only accepts files exported from FastInvoicePDF — other files are rejected. “Delete all saved data” cannot be undone, so export first. For a clean transfer to a new device: export on the old one, import on the new one, then check “My documents”.