PDF Invoice and Packing Slip for WooCommerce

變更記錄

1.8.1 – 21/06/2026

• Fix: Yearly invoice counter reset could race under concurrent Jan 1 requests, causing two invoices to receive the same number. The reset now runs inside the advisory lock alongside the counter increment.
• Fix: When no prefix or suffix was configured, the literal text “prefix” or “suffix” appeared verbatim on invoices. These now fall back to an empty string.
• Fix: When PDF generation failed, the upload directory itself could be added as an email attachment. The attachment is now skipped unless the document was saved successfully and has a valid file path.
• Fix: Admin success and warning notices could be triggered by a crafted URL with no authentication check. Notices are now verified with a nonce before being displayed.
• Fix: An unexpected error during auto-generation left an internal reentrancy guard permanently set, silently suppressing all further auto-generation for the rest of that request. The guard is now always reset even if an error occurs.
• Fix: Viewing or emailing a PDF was vulnerable to directory traversal via a tampered file path stored in order meta; bulk-action result notices now require a nonce before rendering; PDF generation error messages are sanitised before being stored in admin notices.
• Fix: Invoice table no longer crashes on orders with zero-quantity line items; shipping and fee rows now include the SKU column cell when SKU display is enabled; shipping tax is summed as a float rather than an integer; the Subtotal row shows product lines only and no longer double-counts fees and shipping; zero-cost shipping lines are suppressed; empty product SKUs fall back to “-“.
• Fix: The HTML preview endpoint always resets its document global after rendering, even if an error occurs mid-template; bulk generation count now reflects only orders where the PDF was actually saved; PDF open/download behaviour is now resolved per document type; payment due date field description clarifies it is calculated from order creation date; logo URL field is no longer read-only.

1.8.0 – 14/06/2026

• New: Added a payment due date to invoices – configure the offset in days from General Settings.
• New: Added an HTML preview button in the order metabox – check the invoice or packing slip layout without generating a PDF.
• Fix: Downloaded PDFs no longer include stray HTML content after the file data, which could corrupt the download on some browsers.
• Fix: Creating an invoice or packing slip from a draft or incomplete order no longer causes a fatal error.
• Fix: When generating multiple PDFs in bulk or via email attachments, templates no longer bleed into each other from leftover hooks of a previous generation.
• Fix: If PDF generation fails partway through, the invoice number is now held in reserve and reused on the next attempt – no more gaps in your invoice sequence from a failed save.
• Fix: Accessing invoice details on an order that could not be loaded no longer causes a fatal error.

1.7.0 – 07/06/2026

• New: Added an option to show the customer’s note (entered at checkout) on the invoice.
• New: Added an option to control tax display in invoice totals – show each tax class as a separate line, or collapse them into a single tax total.
• New: Added a Documentation page accessible directly from the Plugins list.
• Improvement: Auto-generate status and email attachment settings now use checkboxes instead of a multi-select list – much easier to pick and toggle options.
• Fix: When a PDF fails to generate, an admin notice now appears so you always know something went wrong.

1.6.0 – 30/05/2026

• New: Live invoice preview panel – see exactly how your invoice looks while you’re adjusting settings, without saving first.
• New: Smarter invoice numbering – use simple tokens like {number}, {year}, and {month} to build your own format (e.g. INV-{number}/{year}{month}). Existing formats are upgraded automatically.
• Fix: PDFs no longer crash on orders that were created without a date (e.g. via import or migration tools).
• Fix: Packing slip incorrectly showed “Invoice Date” — now correctly shows “Packing Date”.
• Fix: Company logo is now properly sized and right-aligned on both invoice and packing slip templates.
• Fix: Long addresses and notes no longer cause unwanted scrollbars inside the invoice preview.
• Improvement: The invoice preview panel stays hidden until you need it, keeping the settings page clean.
• Compatibility: Tested and confirmed working with WooCommerce 10.8.1.

1.5.1 – 22/05/2026

• Compatibility: Tested and confirmed working with WordPress 7.0.
• Improved plugin description for clarity.
• Dev: Renamed all internal hooks, filters, and constants from wpwing_wcpi_ to wpwing_wcpdf_ for better long-term naming. Existing data is migrated automatically — no action needed.

1.5.0 – 18/05/2026

• New: Auto-generate invoice and packing slip on configurable order status change.
• New: Attach invoice and packing slip PDF to any WooCommerce transactional email.
• New: Bulk generate invoices and packing slips from the WooCommerce orders list.
• New: Invoice and packing slip status column on the orders list.
• New: Structured company information fields — address, city, ZIP, country, phone, email, and VAT/tax ID.
• New: Paper size selection (A4 or Letter).
• New: Option to show shipping address on invoice.
• New: Option to show product SKU column on invoice.
• New: Yearly invoice number reset option.
• New: Option to skip invoice generation for free (zero-total) orders.
• New: Multiple template selection — Default and Modern templates included.
• New: Live invoice and packing slip preview in Template settings.
• New: High-Performance Order Storage (HPOS) compatibility.
• Security: All document actions (create, view, cancel) are now CSRF-protected with nonces.
• Update: My Account invoice button uses WooCommerce native action — no longer breaks flex layout.
• Update: Cancel invoice/packing slip now shows a confirmation dialog before proceeding.
• Update: Admin notices confirm success or failure after every document action.
• Compatibility check with WordPress v6.9 and WooCommerce v10.7.0.
• Few minor improvements.

1.4.3 – 22/04/2024

• Compatibility check with WordPress v6.5 and WooCommerce v8.8.
• Few minor improvements.

1.4.2 – 17/02/2024

• Compatibility check with WC’s latest version.
• Few minor improvements.

1.4.1 – 20/01/2024

• Update: DOM PDF version 2.0.4
• Compatibility check with WP’s latest version.
• Compatibility check with WC’s latest version.
• Few minor improvements.

1.4.0 – 17/06/2023

• Update: Remove WPWing prefix from the plugin name
• Update: Invoice and Packing slip open in new tab
• Few minor improvements.

1.3.4 – 17/04/2023

• Fix: Refactor and update the DOMPDF library.

1.3.3 – 12/07/2022

• Fix: Refactor and update code.

1.3.2 – 17/06/2022

• Fix: Deactive if the dependent WooCommerce plugin is not activated.
• Few minor improvements.

1.3.1 – 08/06/2022

• Update: Add download invoice feature in customer “My Account > Orders” section.
• Few minor improvements.

1.3.0 – 08/05/2022

• Update: Invoice settings template UI/UX.
• Update: DOMPDF version updated to 1.2.2
• Few minor improvements.

1.2.0 – 04/02/2022

• Update: Add global condition for sending email to the customer billing address.
• Update: DOMPDF version updated to 1.1.1
• Fix: Appropriate text for Invoice Settings checkbox.
• Few minor improvements.

1.1.0 – 25/12/2021

• Update: Send PDF Invoice attached with email when admin creates an invoice.
• Few minor bug fixes and improvements.

1.0.1 – 15/10/2021

• Update: Settings text.
• Update: Set the default invoice number if empty in the settings section.

1.0.0 – 14/10/2021

• initial release.