PDFBOX-4718: replace huge values as those are most likely invalid due to a malformed pdf

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1921840 13f79535-47bb-0310-9956-ffa450edef68

Author: lehmi

pdfbox/src/main/java/org/apache/pdfbox/pdmodel/common/PDRectangle.java

@@ -147,6 +147,14 @@ public PDRectangle( BoundingBox box )
     public PDRectangle( COSArray array )
     {
         float[] values = Arrays.copyOf(array.toFloatArray(), 4);
+        // replace huge values, most likely those are invalid due to a malformed pdf
+        for (int i = 0; i < values.length; i++)
+        {
+            if (Math.abs(values[i]) > Integer.MAX_VALUE)
+            {
+                values[i] = values[i] > 0 ? Integer.MAX_VALUE : -Integer.MAX_VALUE;
+            }
+        }
         rectArray = new COSArray(List.of(
             // we have to start with the lower left corner
             new COSFloat( Math.min(values[0],values[2] )),