DataMagikInstall

Summary

Generate a PNG preview image from a ZPL label template and data substitution

Inputs

• labelTemplate (required) — ZPL template with tokens like {{.SerialNumber}}, {{.PartNo}}
• labelData — Data to substitute in the template
• labelWidth — Width of the label in inches (range: 0.5 to 12)
• labelHeight — Height of the label in inches (range: 0.5 to 12)
• labelDensity — Print density for preview: 6dpmm (152 DPI), 8dpmm (203 DPI), 12dpmm (300 DPI), or 24dpmm (600 DPI)
• labelRotation — Rotation angle for preview: 0, 90, 180, or 270 degrees

Output shape

JSON object with success and message fields, plus a binary PNG preview

The node returns {success: true, message: 'ZPL preview generated'} with a binary preview field containing the PNG image data as label_preview_.png

Examples

Example 1: Workflow builder substitutes serial number and part number into a ZPL template, previews the label at 203 DPI with 4x6 inch dimensions and 0° rotation

labelTemplate: '{{.SerialNumber}}-{{.PartNo}}', labelData: {SerialNumber: 'SN123', PartNo: 'PN456'}, labelWidth: 4, labelHeight: 6, labelDensity: '8dpmm', labelRotation: 0