JSON Serializer added

ILPDFKit/Model/PDFDocument.h

@@ -131,6 +131,10 @@
 
 -(UIImage*)imageFromPage:(NSUInteger)page width:(NSUInteger)width;
 
+/** Sets the background color for the PDF view.
+ @return A string containing an json representation of the forms of the document and their values. Used for submitting the form.
+ */
+-(NSString*)formJSON;
 
 /** Sets the background color for the PDF view.
  @return A string containing an xml representation of the forms of the document and their values. Used for submitting the form.

ILPDFKit/Model/PDFDocument.m

@@ -167,7 +167,10 @@ -(NSUInteger)numberOfPages
 }
 
 #pragma mark - PDF File Saving and Converting
-
+-(NSString*)formJSON
+{
+    return [self.forms formJSON];
+}
 
 -(NSString*)formXML
 {

ILPDFKit/Model/PDFFormContainer.h

@@ -101,6 +101,16 @@
  */
 -(void)setValue:(NSString*)val ForFormWithName:(NSString*)name;
 
+/**---------------------------------------------------------------------------------------
+ * @name JSON
+ *  ---------------------------------------------------------------------------------------
+ */
+
+/** Returns an JSON representation of the form values in the document.
+ @return The json string defining the value and hierarchical structure of all forms in the document.
+ */
+-(NSString*)formJSON;
+
 /**---------------------------------------------------------------------------------------
  * @name XML 
  *  ---------------------------------------------------------------------------------------

ILPDFKit/Model/PDFFormContainer.m

@@ -239,6 +239,48 @@ -(void)setValue:(NSString*)val ForFormWithName:(NSString*)name
     }
 }
 
+#pragma mark - formJSON
+
+-(NSString*)formJSON
+{
+    NSError *error;
+    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:[self formSerializableDictionaryForFormsWithRootNode:_nameTree]
+                                                       options:NSJSONWritingPrettyPrinted
+                                                         error:&error];
+
+    if (! jsonData) {
+        NSLog(@"Got an error: %@", error);
+        return @"{}";
+    }
+    else {
+        return [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
+    }
+}
+
+-(NSDictionary*)formSerializableDictionaryForFormsWithRootNode:(NSDictionary*)node
+{
+    NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
+    for(NSString* key in [node allKeys])
+    {
+        id obj = [node objectForKey:key];
+        if([obj isKindOfClass:[NSMutableArray class]])
+        {
+            PDFForm* form = (PDFForm*)[obj lastObject];
+            if([form.value length]){
+                [dict setObject:form.value forKey:key];
+            }
+        }
+        else
+        {
+            NSDictionary* val = [self formSerializableDictionaryForFormsWithRootNode:obj];
+            if([val count]){
+                [dict setObject:val forKey:key];
+            }
+        }
+    }
+    return dict;
+}
+
 #pragma mark - formXML
 
 -(NSString*)formXML

README.md

@@ -85,9 +85,12 @@ for(PDFForm* form in _pdfViewController.document.forms){
 
 ```objective-c
 [_pdfViewController.document saveFormsToDocumentData^(BOOL success) {
-	/* At this point, _pdfViewController.documentData represents the updated PDF.
+	/* At this point, _pdfViewController.document represents the updated PDF.
    	   You can do as you wish with it. Upload, save to disk etc.
 	*/
+	NSString *filePath = [NSString stringWithFormat:@"%@updated.pdf",NSTemporaryDirectory()];
+	NSData *data = [_pdfViewController.document flattenedData];
+	[data writeToFile:filePath atomically:YES];
 }];
 ```
 
@@ -97,6 +100,12 @@ for(PDFForm* form in _pdfViewController.document.forms){
 NSString* documentFormsXML = [_pdfViewController.document formsXML];
 // Push to webservice
 ```
+
+### Sending Form JSON Data 
+```objective-c
+NSString* documentFormsJSON = [_pdfViewController.document formsJSON];
+// Push to webservice
+```