[gs-cvs] rev 7615 - trunk/gs/lib

[ray at ghostscript.com]

Author: ray
Date: 2007-01-17 11:59:36 -0800 (Wed, 17 Jan 2007)
New Revision: 7615

Modified:
   trunk/gs/lib/pdf_draw.ps
   trunk/gs/lib/pdf_main.ps
Log:
Fix for (yet another) a PDF file that does not meet Adobe's PDF spec,
but Adobe Reader opens silently. In this case there is an Annotation
that is missing the required /N (Normal Appearance) entry. Bug 689045
for customer 531. Thanks to "SaGS" for this fix.


Modified: trunk/gs/lib/pdf_draw.ps
===================================================================
--- trunk/gs/lib/pdf_draw.ps	2007-01-17 06:09:38 UTC (rev 7614)
+++ trunk/gs/lib/pdf_draw.ps	2007-01-17 19:59:36 UTC (rev 7615)
@@ -1262,6 +1262,10 @@
 
 /drawwidget {			% <scalefactor> <annot> drawwidget -
   dup /AP knownoget {
+    dup /N known not {
+      (   **** Appearance dictionary (AP) lacks the mandatory normal (N) appearance.\n)
+      pdfformaterror
+    } if
     false
     [/N /R /D] {
 	% stack: scale annot appearance false key

Modified: trunk/gs/lib/pdf_main.ps
===================================================================
--- trunk/gs/lib/pdf_main.ps	2007-01-17 06:09:38 UTC (rev 7614)
+++ trunk/gs/lib/pdf_main.ps	2007-01-17 19:59:36 UTC (rev 7615)
@@ -1397,12 +1397,13 @@
    false exch			% Assume no transparency
    /Annots knownoget {		% Get Annots array
      { oforce /AP knownoget {	% Get appearance dict for the annoation
-         /N oget		% Get the /N (i.e. normal) appearance stream
-	 /Resources knownoget {
-	   /ExtGState knownoget {
-	     extgstateusestransparency { pop true exit} if
-	   } if			% If ExtGState known
-	 } if			% If Resources known
+	/N knownoget { 	% Get the /N (i.e. normal) appearance stream
+	  /Resources knownoget {
+	    /ExtGState knownoget {
+	       extgstateusestransparency { pop true exit} if
+	     } if		% If ExtGState known
+	   } if			% If Resources known
+	 } if			% If annotation has a normal appearance
        } if			% If AP dict known
      } forall			% For all annots on the page
    } if