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fix: Adds support for superscript and subscript on Super pdf exports #2978

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Merged
antsgar merged 1 commit into from
Feb 5, 2026
Merged

fix: Adds support for superscript and subscript on Super pdf exports #2978

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17 changes: 16 additions & 1 deletion packages/web/src/javascripts/Components/SuperEditor/Lexical/Utils/PDFExport/PDFExport.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,9 @@ import {
getFontFamiliesFromLexicalNode,
} from './FontConfig'

const PDF_SUPERSUBSCRIPT_FONT_SIZE = 9
const PDF_HEADING_SUPERSUBSCRIPT_SCALE = 0.75

const styles = StyleSheet.create({
page: {
paddingVertical: 35,
Expand Down Expand Up @@ -200,6 +203,8 @@ const getPDFDataNodeFromLexicalNode = (
const isBold = node.hasFormat('bold')
const isItalic = node.hasFormat('italic')
const isHighlight = node.hasFormat('highlight')
const isSuperscript = node.hasFormat('superscript')
const isSubscript = node.hasFormat('subscript')
let fontFamily: FontFamily[] | FontFamily = FALLBACK_FONT_FAMILY

if (isInlineCode && isCodeNodeText) {
Expand All @@ -212,6 +217,15 @@ const getPDFDataNodeFromLexicalNode = (
}
}

const baseFontSize = isInlineCode || isCodeNodeText ? 11 : undefined
const headingFontSize = $isHeadingNode(parent) ? getFontSizeForHeading(parent) : undefined
const fontSize =
isSuperscript || isSubscript
? headingFontSize
? Math.max(PDF_SUPERSUBSCRIPT_FONT_SIZE, Math.round(headingFontSize * PDF_HEADING_SUPERSUBSCRIPT_SCALE))
: PDF_SUPERSUBSCRIPT_FONT_SIZE
: baseFontSize

return {
type: 'Text',
children: node.getTextContent(),
Expand All @@ -226,8 +240,9 @@ const getPDFDataNodeFromLexicalNode = (
? 'line-through'
: undefined,
backgroundColor: isInlineCode ? '#f1f1f1' : isHighlight ? 'rgb(255,255,0)' : undefined,
fontSize: isInlineCode || isCodeNodeText ? 11 : undefined,
fontSize,
textAlign: $isElementNode(parent) ? getNodeTextAlignment(parent) : 'left',
verticalAlign: isSuperscript ? 'super' : isSubscript ? 'sub' : undefined,
},
}
}
Expand Down
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