Appendix C. Glossary

Term Meaning
Band A horizontal region of the page with its own repeat rule: Page Header, Report Header, Body, Report Footer, Page Footer, Background
Bare expression An expression without double braces, used in Visible if, Checked if, Data, Sort by, Group by and One copy per
Binding A {{ … }} placeholder that is replaced with data when rendering
BOL Bill of lading: the shipping document that accompanies a freight shipment
CJK Chinese, Japanese and Korean
Check digit The last digit of many barcodes, calculated from the others to detect misreads
Data The JSON values for one document, sent by your system when rendering
Data contract / schema The description of the fields your system sends (JSON Schema). Shown in the Fields tab
Document language (locale) The language and region used to format numbers, dates and currencies in the PDF, e.g. fr-FR
Element Anything placed in a band: text, image, line, rectangle, ellipse, barcode, checkbox, table, repeater, page break
Fallback font A font used automatically for characters the chosen font lacks, e.g. Chinese characters in Arimo text
GS1-128 A Code 128 barcode carrying GS1 Application Identifiers such as (00) SSCC or (01) GTIN
Group Consecutive table rows with the same Group by value, with an optional header row and subtotal row
GTIN Global Trade Item Number: the product number behind UPC/EAN barcodes
Kinsoku Japanese/Chinese line-breaking rules for punctuation
LPN License plate number: an ID for a pallet or container in a warehouse
Metric-compatible font A font whose characters have exactly the same widths as another font's (Arimo = Arial)
Named style A reusable set of style settings defined on the Report tab
Placeholder mode How the designer previews without data: bindings show preview text, tables show sample rows
Point (pt) The unit for sizes: 1/72 inch (0.3528 mm)
Preview text The sample text after | in a binding, shown only in the designer: {{ shipTo.name | Northwind }}
PRO number A carrier's tracking number for a freight shipment
Quiet zone The blank margin a scanner needs around a barcode
Records (batch) One copy per: render one copy of the document per item of a list, into one PDF
Render Producing a PDF from a template and data
Render service The server (@rd/server) that renders PDFs for your systems
Repeater An element that repeats a free-form block per list item
SSCC Serial Shipping Container Code: the 18-digit ID of a carton or pallet, printed as GS1-128 with AI (00)
Stretch A text setting that lets the box grow to fit its content
Template The design of a document (JSON). It contains no customer data
Template text Text that may contain bindings in double braces
Watermark Text printed over the page. Previews show "PREVIEW"; without a valid license, the render service adds "TRIAL VERSION" automatically
← Appendix B. Expression function reference