This patch enables fair-use operations.

--- xpdf-3.04.old/xpdf/XRef.cc
+++ xpdf-3.04/xpdf/XRef.cc
@@ -958,19 +958,19 @@
 }
 
 GBool XRef::okToPrint(GBool ignoreOwnerPW) {
-  return (!ignoreOwnerPW && ownerPasswordOk) || (permFlags & permPrint);
+  return 1;
 }
 
 GBool XRef::okToChange(GBool ignoreOwnerPW) {
-  return (!ignoreOwnerPW && ownerPasswordOk) || (permFlags & permChange);
+  return 1;
 }
 
 GBool XRef::okToCopy(GBool ignoreOwnerPW) {
-  return (!ignoreOwnerPW && ownerPasswordOk) || (permFlags & permCopy);
+  return 1;
 }
 
 GBool XRef::okToAddNotes(GBool ignoreOwnerPW) {
-  return (!ignoreOwnerPW && ownerPasswordOk) || (permFlags & permNotes);
+  return 1;
 }
 
 Object *XRef::fetch(int num, int gen, Object *obj, int recursion) {