LDEV-2736 testcase for cfpdf - removewatermark didn't work

https://luceeserver.atlassian.net/browse/LDEV-2736

tests/LDEV2736.cfc

@@ -0,0 +1,40 @@
+component extends="org.lucee.cfml.test.LuceeTestCase" labels="pdf" {
+
+    function beforeAll() {
+        variables.dir = getTempDirectory() & "/LDEV2256";
+        if (!directoryExists(variables.dir)) directoryCreate(variables.dir);
+
+        document filename="#variables.dir#/main.pdf",overwrite="true",format="pdf" {
+            writeoutput("test main pdf");
+        }
+
+        document filename="#variables.dir#/copyFrom.pdf" overwrite="true" format="pdf" name="copyFrom" {
+            writeoutput("test watermark pdf <br>");
+            writeoutput('<img src="https://raw.githubusercontent.com/lucee/Lucee/6.0/test/functions/images/lucee.png">');
+        }
+    }
+
+    function run( testResults , testBox ) {
+        describe( "Testcase for LDEV-2736", function() {
+            it( title="cfpdf - removewatermark didn't work", body = function( currentSpec ) {
+                pdf action="addwatermark" source="#variables.dir#/main.pdf" copyFrom="#variables.dir#/copyFrom.pdf" name="local.name";
+
+                expect( function(){
+                    pdf action="removewatermark" source="#variables.dir#/main.pdf";  //needs name or destination
+                }).toThrow();
+
+                pdf action="removewatermark" source="#variables.dir#/main.pdf" name="local.out";
+                expect( isPDFObject( out ) ).toBeTrue();
+
+                var dest = "#variables.dir#/removed.pdf";
+                pdf action="removewatermark" source="#variables.dir#/main.pdf" destination="#dest#";
+
+                expect( isPDFObject(dest)).toBeTrue();
+            });
+        });
+    }
+
+    function afterAll() {
+        if (directoryExists(variables.dir)) directoryDelete(variables.dir, true);
+    }
+}