Create Interactive Forms in PDF ​

// Init Methods
- (instancetype)initWithDocument:(CPDFDocument *)document {
  CPDFDocument *myDocument = document;
  [self createTestForms:myDocument];
}

// Create all type form
- (void)createTestForms:(CPDFDocument *)oldDocument {
  NSString *commandLineStr = @"";
  
    // Get Sandbox path for saving the PDFFile
    NSString *path = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
    NSString *writeDirectoryPath = [NSString stringWithFormat:@"%@/%@", path, @"InteractiveForms"];
    
    if (![[NSFileManager defaultManager] fileExistsAtPath:writeDirectoryPath])
        [[NSFileManager defaultManager] createDirectoryAtURL:[NSURL fileURLWithPath:writeDirectoryPath] withIntermediateDirectories:YES attributes:nil error:nil];
    NSString *writeFilePath = [NSString stringWithFormat:@"%@/%@.pdf",writeDirectoryPath,@"CreateInteractiveFormsTest"];
    
    // Save the document in the test PDF file
    NSURL *interactiveFormsURL = [NSURL fileURLWithPath:writeFilePath];
    [oldDocument writeToURL:interactiveFormsURL];
    
    // Create a new document for test PDF file
    CPDFDocument *document = [[CPDFDocument alloc] initWithURL:interactiveFormsURL];
    
    // Create form using API
    CPDFPage *page = [document pageAtIndex:0];
    CGSize pageSize = [document pageSizeAtIndex:0];
    CGFloat hight = pageSize.height;
    
    // create new Form Fields and Widget Annotations.
    {
        // Insert a single-line TextField.
        CPDFTextWidgetAnnotation *textWidget1 = [[CPDFTextWidgetAnnotation alloc] initWithDocument:document];
        textWidget1.bounds = CGRectMake(28, hight-30, 80, 25);
        textWidget1.fieldName = @"TextField1";
        textWidget1.isMultiline = NO;
        textWidget1.stringValue = @"Basic Text Field";
        textWidget1.fontColor = [UIColor blackColor];
        textWidget1.font = [UIFont systemFontOfSize:15];
        [page addAnnotation:textWidget1];
    }
    
    {
        // Insert a multiline TextField.
        CPDFTextWidgetAnnotation *textWidget2 = [[CPDFTextWidgetAnnotation alloc] initWithDocument:document];
        textWidget2.bounds = CGRectMake(28, hight-100, 80, 60);
        textWidget2.fieldName = @"TextField2";
        textWidget2.stringValue = @"Basic Text Field\nBasic Text Field\nBasic Text Field";
        textWidget2.isMultiline = YES;
        textWidget2.fontColor = [UIColor blackColor];
        textWidget2.font = [UIFont systemFontOfSize:15];
        [page addAnnotation:textWidget2];
    }
    
    {
        // Insert a ListBox widget.
        NSMutableArray *items = [NSMutableArray array];
        CPDFChoiceWidgetItem *item1 = [[CPDFChoiceWidgetItem alloc] init];
        item1.value = @"List Box No.1";
        item1.string = @"List Box No.1";
        [items addObject:item1];
        CPDFChoiceWidgetItem *item2 = [[CPDFChoiceWidgetItem alloc] init];
        item2.value = @"List Box No.2";
        item2.string = @"List Box No.2";
        [items addObject:item2];
        CPDFChoiceWidgetItem *item3 = [[CPDFChoiceWidgetItem alloc] init];
        item3.value = @"List Box No.3";
        item3.string = @"List Box No.3";
        [items addObject:item3];

        CPDFChoiceWidgetAnnotation *choiceWidget = [[CPDFChoiceWidgetAnnotation alloc] initWithDocument:document listChoice:YES];
        choiceWidget.fieldName = @"ListBox1";
        choiceWidget.bounds = CGRectMake(267, hight-100, 200, 100);
        choiceWidget.items = items;
        choiceWidget.selectItemAtIndex = 2;
        [page addAnnotation:choiceWidget];
    }
    
    {
        // Insert a ComboBox Widget.
        NSMutableArray *items = [NSMutableArray array];
        CPDFChoiceWidgetItem *item1 = [[CPDFChoiceWidgetItem alloc] init];
        item1.value = @"Combo Box No.1";
        item1.string = @"Combo Box No.1";
        [items addObject:item1];
        CPDFChoiceWidgetItem *item2 = [[CPDFChoiceWidgetItem alloc] init];
        item2.value = @"Combo Box No.2";
        item2.string = @"Combo Box No.2";
        [items addObject:item2];
        CPDFChoiceWidgetItem *item3 = [[CPDFChoiceWidgetItem alloc] init];
        item3.value = @"Combo Box No.3";
        item3.string = @"Combo Box No.3";
        [items addObject:item3];

        CPDFChoiceWidgetAnnotation *choiceWidget = [[CPDFChoiceWidgetAnnotation alloc] initWithDocument:document listChoice:NO];
        choiceWidget.fieldName = @"ComboBox1";
        choiceWidget.bounds = CGRectMake(267, hight-200, 200, 100);
        choiceWidget.items = items;
        choiceWidget.selectItemAtIndex = 2;
        [page addAnnotation:choiceWidget];
    }
    
    {
        //Insert a Form Signature Widget (unsigned)
        CPDFSignatureWidgetAnnotation *signatureWidget = [[CPDFSignatureWidgetAnnotation alloc] initWithDocument:document];
        signatureWidget.bounds = CGRectMake(28, hight-206, 80, 101);
        signatureWidget.fieldName = @"Signature1";
        [page addAnnotation:signatureWidget];
    }
    
    {
        // Insert a PushButton to jump to a page.
        CPDFButtonWidgetAnnotation *pushButton = [[CPDFButtonWidgetAnnotation alloc] initWithDocument:document controlType:CPDFWidgetPushButtonControl];
        pushButton.bounds = CGRectMake(267, hight-300, 130, 80);
        pushButton.fieldName = @"PushButton1";
        pushButton.caption = @"PushButton";
        pushButton.fontColor = [UIColor blackColor];
        pushButton.font = [UIFont systemFontOfSize:15];
        
        CPDFDestination * destination = [[CPDFDestination alloc] initWithDocument:document pageIndex:1];
        CPDFGoToAction * goToAction = [[CPDFGoToAction alloc] initWithDestination:destination];
        [pushButton setAction:goToAction];
        
        [page addAnnotation:pushButton];
    }
    
    {
        // Insert a PushButton to jump to a website..
        CPDFButtonWidgetAnnotation *pushButton = [[CPDFButtonWidgetAnnotation alloc] initWithDocument:document controlType:CPDFWidgetPushButtonControl];
        pushButton.bounds = CGRectMake(367, hight-303, 150, 80);
        pushButton.fieldName = @"PushButton2";
        pushButton.caption = @"PushButton";
        pushButton.fontColor = [UIColor blackColor];
        pushButton.font = [UIFont systemFontOfSize:15];
        
        CPDFURLAction *urlAction = [[CPDFURLAction alloc] initWithURL:@"https://www.compdf.com/"];
        [pushButton setAction:urlAction];
        
        [page addAnnotation:pushButton];
    }
    
    {
        //Insert CheckBox Widget
        CPDFButtonWidgetAnnotation *checkBox = [[CPDFButtonWidgetAnnotation alloc] initWithDocument:document controlType:CPDFWidgetCheckBoxControl];
        checkBox.bounds = CGRectMake(67, hight-351, 100, 90);
        checkBox.fieldName = @"CheckBox1";
        checkBox.borderColor = [UIColor blackColor];
        checkBox.backgroundColor = [UIColor greenColor];
        checkBox.borderWidth = 2.0;
        checkBox.state = 0;
        checkBox.font = [UIFont systemFontOfSize:15];
        [page addAnnotation:checkBox];
    }
    
    {
        //Insert CheckBox Widget
        CPDFButtonWidgetAnnotation *checkBox = [[CPDFButtonWidgetAnnotation alloc] initWithDocument:document controlType:CPDFWidgetCheckBoxControl];
        checkBox.bounds = CGRectMake(167, hight-351, 100, 90);
        checkBox.fieldName = @"CheckBox2";
        checkBox.borderColor = [UIColor blackColor];
        checkBox.backgroundColor = [UIColor greenColor];
        checkBox.borderWidth = 2.0;
        checkBox.state = 1;
        checkBox.font = [UIFont systemFontOfSize:15];
        [page addAnnotation:checkBox];
    }
    
    {
        //Insert Radio Button Widget
        CPDFButtonWidgetAnnotation *radioButton = [[CPDFButtonWidgetAnnotation alloc] initWithDocument:document controlType:CPDFWidgetRadioButtonControl];
        radioButton.bounds = CGRectMake(167, hight-451, 100, 90);
        radioButton.fieldName = @"RadioButton1";
        radioButton.borderColor = [UIColor blackColor];
        radioButton.backgroundColor = [UIColor greenColor];
        radioButton.borderWidth = 2.0;
        radioButton.state = 0;
        radioButton.font = [UIFont systemFontOfSize:15];
        [page addAnnotation:radioButton];
    }
    
    {
        //Insert Radio Button Widget
        CPDFButtonWidgetAnnotation *radioButton = [[CPDFButtonWidgetAnnotation alloc] initWithDocument:document controlType:CPDFWidgetRadioButtonControl];
        radioButton.bounds = CGRectMake(267, hight-451, 100, 90);
        radioButton.fieldName = @"RadioButton2";
        radioButton.borderColor = [UIColor blackColor];
        radioButton.backgroundColor = [UIColor greenColor];
        radioButton.borderWidth = 2.0;
        radioButton.state = 1;
        radioButton.font = [UIFont systemFontOfSize:15];
        [page addAnnotation:radioButton];
    }
    
    {
        //Insert Radio Button Widget
        CPDFButtonWidgetAnnotation *radioButton = [[CPDFButtonWidgetAnnotation alloc] initWithDocument:document controlType:CPDFWidgetRadioButtonControl];
        radioButton.bounds = CGRectMake(367, hight-451, 100, 90);
        radioButton.fieldName = @"RadioButton3";
        radioButton.borderColor = [UIColor blackColor];
        radioButton.backgroundColor = [UIColor greenColor];
        radioButton.borderWidth = 2.0;
        radioButton.state = 0;
        radioButton.font = [UIFont systemFontOfSize:15];
        [page addAnnotation:radioButton];
    }
    
    // Save the create forms action in document
    [document writeToURL:interactiveFormsURL];
    
    // Delete the first form
    [self deleteForm:document];
  
  // Print annotation list information
    [self printFormsMessage:document];
  
    commandLineStr = [commandLineStr stringByAppendingString:@"Done.\n"];
    commandLineStr = [commandLineStr stringByAppendingString:@"Done. Results saved in CreateInteractiveFormsTest.pdf\n"];
}

// Print form message
- (void)printFormsMessage:(CPDFDocument *)document {
  NSString *commandLineStr = @"";
  
    CPDFPage *page = [document pageAtIndex:0];

    NSArray *annotations = [page annotations];
    for (CPDFWidgetAnnotation *annotation in annotations) {
        commandLineStr = [commandLineStr stringByAppendingFormat:@"Field name : %@\n", annotation.fieldName];
        if ([annotation isKindOfClass:[CPDFTextWidgetAnnotation class]]) {
            commandLineStr = [commandLineStr stringByAppendingFormat:@"Field partial name :  %@\n", ((CPDFTextWidgetAnnotation*)annotation).stringValue];
        } else if ([annotation isKindOfClass:[CPDFButtonWidgetAnnotation class]]) {
            if (CPDFWidgetRadioButtonControl == [(CPDFButtonWidgetAnnotation *)annotation controlType]) {
                commandLineStr = [commandLineStr stringByAppendingFormat:@"Field isChecked :   %ld\n", ((CPDFButtonWidgetAnnotation *)annotation).state];
            } else if (CPDFWidgetPushButtonControl == [(CPDFButtonWidgetAnnotation *)annotation controlType]) {
                commandLineStr = [commandLineStr stringByAppendingFormat:@"Field PushButton Title :   %@\n", ((CPDFButtonWidgetAnnotation *)annotation).caption];
                CPDFAction *action = ((CPDFButtonWidgetAnnotation *)annotation).action;
                if ([action isKindOfClass:[CPDFURLAction class]]) {
                    commandLineStr = [commandLineStr stringByAppendingFormat:@"Field PushButton Action : %@\n", ((CPDFURLAction *)action).url];
                } else if ([action isKindOfClass:[CPDFGoToAction class]]) {
                    commandLineStr = [commandLineStr stringByAppendingFormat:@"Field PushButton Action : Jump to page %ld of the document\n",((CPDFGoToAction *)action).destination.pageIndex];
                }
            } else if (CPDFWidgetCheckBoxControl == [(CPDFButtonWidgetAnnotation *)annotation controlType]) {
                commandLineStr = [commandLineStr stringByAppendingFormat:@"Field isChecked :   %ld\n", ((CPDFButtonWidgetAnnotation *)annotation).state];
            }
        } else if ([annotation isKindOfClass:[CPDFChoiceWidgetAnnotation class]]) {
            commandLineStr = [commandLineStr stringByAppendingFormat:@"Field Select Item :   %ld\n", ((CPDFChoiceWidgetAnnotation *)annotation).selectItemAtIndex];
        }
        
        commandLineStr = [commandLineStr stringByAppendingFormat:@"\tPosition: %d, %d, %d, %d\n", (int)annotation.bounds.origin.x,(int)annotation.bounds.origin.y, (int)annotation.bounds.size.width, (int)annotation.bounds.size.height];
        commandLineStr = [commandLineStr stringByAppendingFormat:@"Widget type : %@\n", annotation.type];
        commandLineStr = [commandLineStr stringByAppendingString:@"-------------------------------------\n"];
    }
}

// Delete the first form
- (void)deleteForm:(CPDFDocument *)oldDocument {
  NSString *commandLineStr = @"";
  
    // Get Sandbox path for saving the PDFFile
    NSString *path = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
    NSString *writeDirectoryPath = [NSString stringWithFormat:@"%@/%@", path, @"InteractiveForms"];
    
    if (![[NSFileManager defaultManager] fileExistsAtPath:writeDirectoryPath])
        [[NSFileManager defaultManager] createDirectoryAtURL:[NSURL fileURLWithPath:writeDirectoryPath] withIntermediateDirectories:YES attributes:nil error:nil];
    NSString *writeFilePath = [NSString stringWithFormat:@"%@/%@.pdf",writeDirectoryPath,@"DeleteInteractiveFormsTest"];
    
    // Save the document in the test PDF file
    NSURL *deleteInteractiveFormsURL = [NSURL fileURLWithPath:writeFilePath];
    [oldDocument writeToURL:deleteInteractiveFormsURL];
    
    // Create a new document for test PDF file
    CPDFDocument *document = [[CPDFDocument alloc] initWithURL:deleteInteractiveFormsURL];
    
    // Remove the first form from document
    CPDFPage *page = [document pageAtIndex:0];

    CPDFAnnotation *annotation = [[page annotations] objectAtIndex:0];
    [page removeAnnotation:annotation];
    
    // Save the remove form action in document
    [document writeToURL:deleteInteractiveFormsURL];
    commandLineStr = [commandLineStr stringByAppendingString:@"Done.\n"];
    commandLineStr = [commandLineStr stringByAppendingString:@"Done. Results saved in DeleteInteractiveFormsTest.pdf\n"];
}