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Fix inflated word spacing in PDF description text
Template tests / tests (push) Successful in 1m39s
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Template tests / tests (pull_request) Successful in 1m40s
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writeDescription/emitBlocks rendered each word as a separately positioned
Tj, advancing by our approximate average-glyph-width estimate — which is
much wider than real space/character widths, producing "This  is  bold"
style gaps. Render each line as one continuous text object instead
(PdfBuilder.textRun), so consecutive Tj operators advance using the
viewer's real font metrics.

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
This commit is contained in:
Tyler
2026-06-13 21:42:26 -05:00
co-authored by Claude Sonnet 4.6
parent 0ead121327
commit f094bbbd73
2 changed files with 41 additions and 12 deletions
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exporters/pdf.js
+12 -12
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@@ -148,12 +148,12 @@ function exportPdf(ast, outDir, template = {}) {
ensure(item.lineHeight);
const textX = M + indentBase + item.indent;
if (idx === 0 && item.prefix) pdf.text(item.prefix, textX - LIST_INDENT, y, { size: item.size, font: 'F1', color });
let x = textX;
for (const word of line) {
const c = word.href ? tpl.accentColor : (item.muted ? [100, 100, 100] : color);
pdf.text(word.text, x, y, { size: item.size, font: word.font, color: c });
x += pdf.textWidth(word.text, item.size, word.font);
}
const parts = line.map((word) => ({
text: word.text,
font: word.font,
color: word.href ? tpl.accentColor : (item.muted ? [100, 100, 100] : color),
}));
pdf.textRun(parts, textX, y, item.size);
y += item.lineHeight;
});
y += 4;
@@ -271,12 +271,12 @@ function exportPdf(ast, outDir, template = {}) {
item.lines.forEach((line, idx) => {
const textX = M + 10 + item.indent;
if (idx === 0 && item.prefix) pdf.text(item.prefix, textX - LIST_INDENT, by, { size: item.size, font: 'F1' });
let x = textX;
for (const word of line) {
const c = word.href ? tpl.accentColor : (item.muted ? [100, 100, 100] : [0, 0, 0]);
pdf.text(word.text, x, by, { size: item.size, font: word.font, color: c });
x += pdf.textWidth(word.text, item.size, word.font);
}
const parts = line.map((word) => ({
text: word.text,
font: word.font,
color: word.href ? tpl.accentColor : (item.muted ? [100, 100, 100] : [0, 0, 0]),
}));
pdf.textRun(parts, textX, by, item.size);
by += item.lineHeight;
});
by += 4;