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Apply char/word-spacing correctly for missing Type3-glyphs

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In the included PDF document the Type3-font doesn't contain any glyph definition for "space", despite that character being referenced in the /Contents stream.
While missing Type3-glyphs obviously cannot be rendered, we still need to update the current canvas position such that any char/word-spacing is correctly applied.

The test-case was found at https://github.com/pdf-association/pdf-differences/tree/main/Type3WordSpacing
This commit is contained in:
Jonas Jenwald 2025-03-29 00:06:46 +01:00
parent dfa553dc11
commit 667645798f
4 changed files with 149 additions and 3 deletions
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4
src/display/canvas.js
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@ -2264,9 +2264,7 @@ class CanvasGraphics {
const operatorList = font.charProcOperatorList[glyph.operatorListId];
if (!operatorList) {
warn(`Type3 character "${glyph.operatorListId}" is not available.`);
continue;
}
if (this.contentVisible) {
} else if (this.contentVisible) {
this.processingType3 = glyph;
this.save();
ctx.scale(fontSize, fontSize);