by Piensa ITOne HTTP call · one finished PDF
Your documents, from your application. Send the data, get the PDF.
Invoices, credit and debit notes, payment requests, cash receipts, payslips, reports, inventory and contracts. Your application sends the document type and its data; the response is the PDF, with selectable text and real pagination.
POST /api/documents
curl -X POST https://docsgen.piensait.com/api/documents \
-H "authorization: Bearer $DOCGEN_API_KEY" \
-H "content-type: application/json" \
-d @cuenta-de-cobro.json \
-o cuenta.pdf
# 200 · content-type: application/pdf- document types via API
- 31
- invoice designs
- 17
- formats in the examples
- 43
- call per document
- 1
Documents
Documents you can request today
Amounts use the same vocabulary across every design, so switching designs means changing one word.
17 designs
E-invoice
The printable rendering of an electronic sales invoice, on A4 or on an 80 mm POS receipt.
type factura
1 design
Credit note
The printable rendering of an electronic credit note.
type nota-credito
1 design
Debit note
The printable rendering of an electronic debit note.
type nota-debito
18 designs
Payment request
The document for those who are not required to issue invoices.
type cuenta-de-cobro
1 design
Quote
What you offer and at what price, before there is an order.
type cotizacion
5 designs
Commercial proposal
A multi-page pitch: a photo cover with the client, scope, plans and pricing.
type propuesta-comercial
1 design
Sales order
What a customer ordered, with quantities and total.
type pedido
1 design
Purchase requisition
What a department asks to buy, before the order.
type requisicion
1 design
Purchase order
What you order from a supplier, with its payment terms.
type orden-de-compra
1 design
Purchase invoice
A supplier purchase, with its tax breakdown.
type factura-de-compra
1 design
Equivalent document
A purchase from someone not required to issue invoices.
type documento-equivalente
1 design
Advance payment
A payment made up front, with what it is applied to.
type anticipo
1 design
Payment voucher
Money paid out to a payee, with what it covers.
type comprobante-de-egreso
1 design
Contract
Any template with placeholders: leases, employment, HOA minutes, notices and letters.
type contrato
2 designs
Cash receipt
Money received, with the invoices it is applied to.
type recibo-de-caja
1 design
Account statement
What a customer owes at a cut-off date: movements, aging and balance.
type estado-de-cuenta
1 design
Investment fund statement
A period's movements in cash and in units, with the closing balance, for the holder of an investment.
type extracto-de-fondo
5 designs
Tax certificate
What a withholding agent withheld from a third party in a tax year: income tax, VAT, local business tax, or the VAT invoiced.
type certificado-retencion
7 designs
Work order
Corrective or preventive maintenance: the asset, the tasks, the parts and the signatures.
type orden-de-trabajo
8 designs
Handover receipt
Who accepted a job, when and with which signature, with the order's handover history.
type soporte-de-recepcion
6 designs
Work permit
The authorization for a high-risk task, with its verified controls and its signatures.
type permiso-de-trabajo
5 designs
Asset tag
A machine's sticker: its code, its location and a QR code.
type etiqueta-de-equipo
7 designs
Safety inspection
A checklist for an area or a piece of equipment, with its findings and owners.
type inspeccion-de-seguridad
7 designs
PPE handover
Which protective equipment was handed to whom, with the receiver’s signature.
type entrega-de-epp
6 designs
Toolbox talk
The day's safe-work analysis, with its risks and the attendees signing.
type charla-preoperacional
6 designs
Payslip
Earnings, deductions and net pay for one person in a pay period, password-protected on request.
type colilla-de-nomina
1 design
Report
A table with the columns, rows and totals you send, portrait or landscape.
type informe
1 design
Goods receipt
What arrives at a warehouse, with its items, lots, serials and signatures.
type entrada-de-inventario
1 design
Goods issue
What leaves a warehouse and why, signed by whoever hands it over and whoever receives it.
type salida-de-inventario
1 design
Stock transfer
A transfer between two warehouses, with departure and arrival dates.
type traslado-de-inventario
1 design
Mailroom label
The document-intake label, with running number, date, sender, folios and a QR code.
type etiqueta-de-radicado
Examples
What the documents look like
Each example is a PDF composed by the same engine that answers the API, with sample data. Open one to see all its designs and download it.
Integration
Nothing to install
What you integrate is an HTTP call: you send a JSON with the document type and its data, and the response is the PDF.
- PHP, .NET, Java, Python, Node or a no-code automation: if it can make a POST, it can generate documents
- Designs improve without you doing anything: no version to upgrade, no deployment to coordinate
- Text is text: it can be selected, searched and copied, and the document paginates
- Errors come back as JSON and say what is missing
Get started
Your first PDF in four steps
Request your key
Write to us and we hand it over. We don't store it anywhere: if you lose it, we issue a new one.Send the example as is
Take the example for your document type and send it unchanged. That separates a connection problem from a data problem.Swap in your data
Replace the example data with your real data, field by field.Call from your server
Never from the browser: the key would travel inside JavaScript anyone can read.
Guarantees
What the service doesn't do, and won't
It may look like a limitation; it is a guarantee. Responsibility for every figure stays where the data lives: in your system.
It doesn't calculate
Amounts arrive prepared and get printed: no sums, no VAT. A total that doesn't add up is printed exactly as received.
It doesn't generate CUFE or CUDE
Nor authorized numbering or QR content: your certified e-invoicing provider produces them and they are drawn here. If missing, the document says so.
It doesn't assign numbers
You bring the document number. Numbering would make us the source of truth for your company's legal numbering.
It doesn't store documents
Composed, delivered and forgotten.
- Can I generate several documents in one call?
- Not today: one document per call. Batch generation is planned; if you need it, tell us when you start.
- Can I call the API from the browser?
- No. The key would travel inside JavaScript anyone can read. Your web app asks your backend for the document, and your backend asks us.
- What if the total doesn't match the lines?
- It is printed exactly as received. The service doesn't add up amounts or apply taxes.
- Can payslips be password-protected?
- Yes, with cifrar: true. The password is the employee's ID number, exactly as you send it.
- Why is the first call slower?
- The service sleeps when nobody calls it and starts on its own. From then on it responds in milliseconds.