How to customize printable documents in WooCommerce

List the documents your team actually prints: invoices, packing slips, pick lists, delivery notes, address labels or credit notes. Decide which ones customers can download, which ones staff print, and whether documents should be attached to order emails.

Invoices may be legal documents, so confirm the required business details, tax information, numbering and date format with your accountant or local tax authority. WooCommerce’s documentation specifically warns that invoice layouts should follow local tax requirements.

WooCommerce itself does not give you a complete branded document system for these outputs. Use a document or PDF invoice extension that supports the document types you need, or customise an extension already installed on the site.

Check that it supports PDF generation, customer downloads, email attachments, order-page printing and bulk actions if your fulfilment team needs them. Some extensions provide separate settings for invoices, packing slips, delivery notes and labels.

Open the extension’s document settings and enter your store name, address, contact details, logo, tax information, invoice numbering and date format. Set the order statuses that should generate documents and decide whether PDFs are attached to customer or admin emails.

Do not assume that changing the current company details will rewrite old invoices. Some extensions warn that previously generated documents may be affected by later setting changes, so keep records if your invoices must remain historically accurate.

If you are comfortable with PHP and CSS, use the extension’s template override system rather than editing files inside wp-content/plugins. Copy the relevant template into your child theme or a supported override folder, then change the HTML, table structure and styles there. The exact folder is extension-specific; for example, WooCommerce’s PDF Invoice documentation uses wp-content/themes/YOUR_THEME/pdf_templates/template.php.

Where the extension provides hooks, add custom content through a child theme or custom plugin instead of changing templates. WooCommerce Print Invoices and Packing Lists documents hooks such as wc_pip_styles, wc_pip_before_header and wc_pip_after_customer_addresses. Never copy hook names from one document plugin into another.

The drawback is maintenance. Plugin updates can change templates, PDF libraries often support only part of normal CSS, and a small PHP error can stop document generation. Table-based layouts are commonly required by PDF renderers such as DOMPDF.

Add the fields your staff or customers need, such as order number, invoice number, billing and shipping addresses, SKU, variation data, quantities, prices, tax, shipping, payment method, customer notes and return instructions. Keep packing slips focused on picking and packing rather than showing unnecessary payment details.

Generate a document from a real test order and preview it before printing. Check long product names, multiple pages, refunds, tax lines, missing addresses, special characters, product variations and orders with many items. A saved layout is not proof that the PDF will print correctly.

Print or save PDFs from the order screen and test the paper size, margins, logo quality, page breaks, label alignment and duplex settings. Confirm that the right document is attached to the right email and that customers can access downloads from the thank-you page or My Account when enabled.

For several orders, filter the order list by status or by whether documents have already been printed, then use the extension’s bulk action. Print a small batch first. A common Friday-afternoon failure is duplicate packing slips caused by re-running a bulk action without checking which orders were already processed. WooCommerce’s documentation recommends filtering orders before bulk printing where the extension supports it.

If you need several document types, branded layouts, custom fields and bulk printing without maintaining PHP templates, use Flexible Printing. Its drag-and-drop editor is designed for invoices, packing slips and labels, with dynamic order data, document previews, branding controls and bulk printing.

This is the fast route for fulfilment teams: choose a document, arrange the fields, add your logo and colours, preview it with a real order, then print a batch. Keep the manual route when your documents are simple, your current extension already works, or you have a developer who needs precise template and hook control.