35 lines
1.5 KiB
Diff
35 lines
1.5 KiB
Diff
--- a/poppler/PDFDoc.cc
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+++ b/poppler/PDFDoc.cc
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@@ -1757,6 +1757,9 @@ void PDFDoc::replacePageDict(int pageNo,
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{
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Ref *refPage = getCatalog()->getPageRef(pageNo);
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Object page = getXRef()->fetch(*refPage);
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+ if (!page.isDict()) {
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+ return;
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+ }
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Dict *pageDict = page.getDict();
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pageDict->remove("MediaBoxssdf");
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pageDict->remove("MediaBox");
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--- a/utils/pdfunite.cc
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+++ b/utils/pdfunite.cc
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@@ -293,9 +293,18 @@ int main(int argc, char *argv[])
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const PDFRectangle *cropBox = nullptr;
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if (docs[i]->getCatalog()->getPage(j)->isCropped())
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cropBox = docs[i]->getCatalog()->getPage(j)->getCropBox();
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- docs[i]->replacePageDict(j, docs[i]->getCatalog()->getPage(j)->getRotate(), docs[i]->getCatalog()->getPage(j)->getMediaBox(), cropBox);
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Ref *refPage = docs[i]->getCatalog()->getPageRef(j);
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Object page = docs[i]->getXRef()->fetch(*refPage);
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+ if (!page.isDict()) {
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+ fclose(f);
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+ delete yRef;
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+ delete countRef;
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+ delete outStr;
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+ error(errSyntaxError, -1, "PDFDoc::replacePageDict failed.");
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+ return -1;
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+ } else {
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+ docs[i]->replacePageDict(j, docs[i]->getCatalog()->getPage(j)->getRotate(), docs[i]->getCatalog()->getPage(j)->getMediaBox(), cropBox);
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+ }
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Dict *pageDict = page.getDict();
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Object *resDict = docs[i]->getCatalog()->getPage(j)->getResourceDictObject();
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if (resDict->isDict()) {
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