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authorAkira Kakuto <kakuto@fuk.kindai.ac.jp>2019-02-25 03:01:12 +0000
committerAkira Kakuto <kakuto@fuk.kindai.ac.jp>2019-02-25 03:01:12 +0000
commit3112e1aed533fe7ee58dd8cba2e4cd768372dfd6 (patch)
tree02077f80cf4a13a6c571bace448a53a38a9b6768 /Build/source/libs/xpdf/xpdf-src/xpdf/Catalog.cc
parent73052dd2c8e70e61b653151192fe1f000fcf626d (diff)
xpdf-4.01
git-svn-id: svn://tug.org/texlive/trunk@50122 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/xpdf/xpdf-src/xpdf/Catalog.cc')
-rw-r--r--Build/source/libs/xpdf/xpdf-src/xpdf/Catalog.cc9
1 files changed, 7 insertions, 2 deletions
diff --git a/Build/source/libs/xpdf/xpdf-src/xpdf/Catalog.cc b/Build/source/libs/xpdf/xpdf-src/xpdf/Catalog.cc
index e1b8be98936..470807314a6 100644
--- a/Build/source/libs/xpdf/xpdf-src/xpdf/Catalog.cc
+++ b/Build/source/libs/xpdf/xpdf-src/xpdf/Catalog.cc
@@ -453,8 +453,13 @@ GBool Catalog::readPageTree(Object *catDict) {
}
if (topPagesObj.dictLookup("Count", &countObj)->isInt()) {
numPages = countObj.getInt();
- if (numPages == 0) {
- // Acrobat apparently scans the page tree if it sees a zero count
+ if (numPages == 0 || numPages > 50000) {
+ // 1. Acrobat apparently scans the page tree if it sees a zero
+ // count.
+ // 2. Absurdly large page counts result in very slow loading,
+ // because other code tries to fetch pages 1 through n.
+ // In both cases: ignore the given page count and scan the tree
+ // instead.
numPages = countPageTree(&topPagesObj);
}
} else {