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--- fontforge-20120731-b/fontforge/parsepdf.c.orig	2013-04-15 17:47:51.113706334 +0100
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+++ fontforge-20120731-b/fontforge/parsepdf.c	2013-04-15 17:55:55.531682304 +0100
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@@ -960,6 +960,8 @@
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 	    start = 0;
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 	    num = pdf_getinteger(pt,pc);
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 	}
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+	if ( (pt=PSDictHasEntry(&pc->pdfdict,"DecodeParms"))!=NULL && strstr(pt, "/Predictor")!=NULL)
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+return( NULL );
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 	if ( (pt=PSDictHasEntry(&pc->pdfdict,"Index"))!=NULL ) {
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 	    if ( sscanf(pt,"[%d %d]", &start, &num )!=2 )
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 return( NULL );