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Invoice Generator
Create an invoice and save it as PDF by printing: integer maths without floating-point errors, inclusive or exclusive tax, discount before or after tax, the amount in words in Arabic and English, and JSON export/import.
Workspace
How the result is calculated
All amounts are integers in minor units (cents, halalas…) using BigInt, with no floating point, and rounding is half-up at every step. Per line: base = round(price × quantity), then the line discount, then the overall “before tax” discount. Exclusive: tax = round(net × rate); inclusive: net = round(gross ÷ (1 + rate)) and tax = the difference. An “after tax” discount (% or fixed) is subtracted from the total. Decimals follow the currency (JPY=0, KWD/BHD/OMR=3, others 2). Formatting uses Intl.NumberFormat. The amount in words is in English (up to billions) and Arabic (up to 999,999,999) for specific currencies.
Limits:
This is a “PDF invoice”, not an officially approved e-invoice: ZATCA and similar requirements (encrypted QR, sequencing, stamping) are not implemented. PDF is saved through the browser’s print (real text). The Arabic amount in words follows general rules and may need a linguistic review, available for USD, EUR, SAR, AED, EGP and KWD only. Clients are not stored between sessions (use JSON export). Review the maths yourself before sending to a client.
FAQ
Is it a tax-approved invoice?
No; it is an ordinary PDF invoice.
How do I save as PDF?
Press Print and choose “Save as PDF”.
