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Merge pull request #18942 from Snuffleupagus/issue-18941
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Fallback to a standard font if a font-file entry doesn't contain a Stream (issue 18941)
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Snuffleupagus authored Oct 22, 2024
2 parents d37e4b0 + 236c8d8 commit 49c3dc9
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Showing 3 changed files with 20 additions and 2 deletions.
12 changes: 10 additions & 2 deletions src/core/evaluator.js
Original file line number Diff line number Diff line change
Expand Up @@ -63,7 +63,6 @@ import {
LocalTilingPatternCache,
RegionalImageCache,
} from "./image_utils.js";
import { NullStream, Stream } from "./stream.js";
import { BaseStream } from "./base_stream.js";
import { bidi } from "./bidi.js";
import { ColorSpace } from "./colorspace.js";
Expand All @@ -77,6 +76,7 @@ import { ImageResizer } from "./image_resizer.js";
import { MurmurHash3_64 } from "../shared/murmurhash3.js";
import { OperatorList } from "./operator_list.js";
import { PDFImage } from "./image.js";
import { Stream } from "./stream.js";

const DefaultPartialEvaluatorOptions = Object.freeze({
maxImageSize: -1,
Expand Down Expand Up @@ -4425,12 +4425,20 @@ class PartialEvaluator {
let fontFile, subtype, length1, length2, length3;
try {
fontFile = descriptor.get("FontFile", "FontFile2", "FontFile3");

if (fontFile) {
if (!(fontFile instanceof BaseStream)) {
throw new FormatError("FontFile should be a stream");
} else if (fontFile.isEmpty) {
throw new FormatError("FontFile is empty");
}
}
} catch (ex) {
if (!this.options.ignoreErrors) {
throw ex;
}
warn(`translateFont - fetching "${fontName.name}" font file: "${ex}".`);
fontFile = new NullStream();
fontFile = null;
}
let isInternalFont = false;
let glyphScaleFactors = null;
Expand Down
1 change: 1 addition & 0 deletions test/pdfs/issue18941.pdf.link
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
https://github.com/user-attachments/files/17473385/21_10_2024_FAMI.INVERSION.SAS_901060703_inicial.pdf
9 changes: 9 additions & 0 deletions test/test_manifest.json
Original file line number Diff line number Diff line change
Expand Up @@ -2352,6 +2352,15 @@
"lastPage": 3,
"type": "eq"
},
{
"id": "issue18941",
"file": "pdfs/issue18941.pdf",
"md5": "6288e69c1dd240859c1d49c22a53a5c7",
"rounds": 1,
"link": true,
"lastPage": 1,
"type": "eq"
},
{
"id": "f1040",
"file": "pdfs/f1040.pdf",
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