From: Dirk Lemstra <dirk@git.imagemagick.org>
Date: Sun, 1 Apr 2018 08:33:56 +0000 (+0200)
Subject: Don't add empty properties and use ConstantString instead of AcquireString.
X-Git-Tag: 7.0.7-29~236
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=84c017dac2331eb74c8747ce619dafece3767ce8;p=imagemagick

Don't add empty properties and use ConstantString instead of AcquireString.
---

diff --git a/coders/pdf.c b/coders/pdf.c
index 6c61884e4..109196ba5 100644
--- a/coders/pdf.c
+++ b/coders/pdf.c
@@ -567,9 +567,10 @@ static Image *ReadPDFImage(const ImageInfo *image_info,ExceptionInfo *exception)
           name[i++]=(char) c;
         }
         name[i]='\0';
-        value=AcquireString(name);
+        value=ConstantString(name);
         (void) SubstituteString(&value,"#20"," ");
-        (void) SetImageProperty(image,property,value,exception);
+        if (*value != '\0')
+          (void) SetImageProperty(image,property,value,exception);
         value=DestroyString(value);
         continue;
       }
diff --git a/coders/ps.c b/coders/ps.c
index 70b82a812..98f187469 100644
--- a/coders/ps.c
+++ b/coders/ps.c
@@ -662,7 +662,8 @@ static Image *ReadPSImage(const ImageInfo *image_info,ExceptionInfo *exception)
         (void) SubstituteString(&value,"(","");
         (void) SubstituteString(&value,")","");
         (void) StripString(value);
-        (void) SetImageProperty(image,property,value,exception);
+        if (*value != '\0')
+          (void) SetImageProperty(image,property,value,exception);
         value=DestroyString(value);
         continue;
       }