diff --git a/Resource/Init/pdf_base.ps b/Resource/Init/pdf_base.ps

index 1a218f4..cffde5c 100644

--- a/Resource/Init/pdf_base.ps

+++ b/Resource/Init/pdf_base.ps

@@ -157,7 +157,7 @@ currentdict /num-chars-dict .undef

     {

       dup ==only () = flush

     } ifelse % PDFSTEP

-  } if % PDFDEBUG

+  } executeonly if % PDFDEBUG

   2 copy .knownget {

     exch pop exch pop exch pop exec

   } {

diff --git a/Resource/Init/pdf_draw.ps b/Resource/Init/pdf_draw.ps

index e18a7c2..0a3924c 100644

--- a/Resource/Init/pdf_draw.ps

+++ b/Resource/Init/pdf_draw.ps

@@ -501,8 +501,8 @@ end

       (        Output may be incorrect.\n) pdfformaterror

       //pdfdict /.gs_warning_issued //true .forceput

       PDFSTOPONERROR { /gs /undefined signalerror } if

-    } if

-  }

+    } executeonly if

+  } executeonly

   ifelse

 } bind executeonly def

@@ -1142,7 +1142,7 @@ currentdict end readonly def

           .setglobal

           pdfformaterror

         } executeonly ifelse

-      }

+      } executeonly

       {

         currentglobal //pdfdict gcheck .setglobal

         //pdfdict /.Qqwarning_issued //true .forceput

@@ -1150,8 +1150,8 @@ currentdict end readonly def

         pdfformaterror

       } executeonly ifelse

       end

-    } ifelse

-  } loop

+    } executeonly ifelse

+  } executeonly loop

   {

     (\n   **** Error: File has unbalanced q/Q operators \(too many q's\)\n               Output may be incorrect.\n)

     //pdfdict /.Qqwarning_issued .knownget

@@ -1165,14 +1165,14 @@ currentdict end readonly def

         .setglobal

         pdfformaterror

       } executeonly ifelse

-    }

+    } executeonly

     {

       currentglobal //pdfdict gcheck .setglobal

       //pdfdict /.Qqwarning_issued //true .forceput

       .setglobal

       pdfformaterror

     } executeonly ifelse

-  } if

+  } executeonly if

   pop

   % restore pdfemptycount

diff --git a/Resource/Init/pdf_font.ps b/Resource/Init/pdf_font.ps

index 9fb85f6..357ba30 100644

--- a/Resource/Init/pdf_font.ps

+++ b/Resource/Init/pdf_font.ps

@@ -677,7 +677,7 @@ currentdict end readonly def

                 currentglobal 2 index dup gcheck setglobal

                 /FontInfo 5 dict dup 5 1 roll .forceput

                 setglobal

-              } if

+              } executeonly if

               dup /GlyphNames2Unicode .knownget not {

                 //true                        % No existing G2U, make one

               } {

@@ -701,9 +701,9 @@ currentdict end readonly def

         } if

         PDFDEBUG {

           (.processToUnicode end) =

-        } if

-      } if

-    } stopped

+        } executeonly if

+      } executeonly if

+    } executeonly stopped

     {

       .dstackdepth 1 countdictstack 1 sub

       {pop end} for

@@ -1233,19 +1233,20 @@ currentdict /eexec_pdf_param_dict .undef

                 //pdfdict /.Qqwarning_issued //true .forceput

               } executeonly if

               Q

-            } repeat

+            } executeonly repeat

             Q

-          } PDFfile fileposition 2 .execn % Keep pdfcount valid.

+          } executeonly PDFfile fileposition 2 .execn % Keep pdfcount valid.

           PDFfile exch setfileposition

-        } ifelse

-      } {

+        } executeonly ifelse

+      } executeonly

+      {

         % PDF Type 3 fonts don't use .notdef

         % d1 implementation adjusts the width as needed

         0 0 0 0 0 0

         pdfopdict /d1 get exec

       } ifelse

       end end

-    } bdef

+    } executeonly bdef

     dup currentdict Encoding .processToUnicode

     currentdict end .completefont exch pop

 } bind executeonly odef

@@ -2045,9 +2046,9 @@ currentdict /CMap_read_dict undef

           (Will continue, but content may be missing.) = flush

         } ifelse

       } if

-    } if

+    } executeonly if

     /findresource cvx /undefined signalerror

-  } loop

+  } executeonly loop

 } bind executeonly odef

 /buildCIDType0 {	% <CIDFontType0-font-resource> buildCIDType0 <font>

diff --git a/Resource/Init/pdf_main.ps b/Resource/Init/pdf_main.ps

index 5305ea6..a59e63c 100644

--- a/Resource/Init/pdf_main.ps

+++ b/Resource/Init/pdf_main.ps

@@ -2749,15 +2749,15 @@ currentdict /PDF2PS_matrix_key undef

           .setglobal

           pdfformaterror

         } executeonly ifelse

-      }

+      } executeonly

       {

         currentglobal //pdfdict gcheck .setglobal

         //pdfdict /.Qqwarning_issued //true .forceput

         .setglobal

         pdfformaterror

       } executeonly ifelse

-    } if

-  } if

+    } executeonly if

+  } executeonly if

   pop

   count PDFexecstackcount sub { pop } repeat

   (after exec) VMDEBUG

diff --git a/Resource/Init/pdf_ops.ps b/Resource/Init/pdf_ops.ps

index 285e582..6c1f100 100644

--- a/Resource/Init/pdf_ops.ps

+++ b/Resource/Init/pdf_ops.ps

@@ -186,14 +186,14 @@ currentdict /gput_always_allow .undef

         .setglobal

         pdfformaterror

       } executeonly ifelse

-    }

+    } executeonly

     {

       currentglobal //pdfdict gcheck .setglobal

       //pdfdict /.Qqwarning_issued //true .forceput

       .setglobal

       pdfformaterror

     } executeonly ifelse

-  } if

+  } executeonly if

 } bind executeonly odef

 % Save PDF gstate

@@ -440,11 +440,12 @@ currentdict /gput_always_allow .undef

   dup type /booleantype eq {

     .currentSMask type /dicttype eq {

       .currentSMask /Processed 2 index .forceput

+    } executeonly

+    {

+      .setSMask

+    }ifelse

   } executeonly

   {

-      .setSMask

-  }ifelse

-  }{

   .setSMask

   }ifelse