kmpdfkit_demo/PDFViewer/Source/PDFWatermark/PDFWatermarkClipView.m

//
//  CPDFClipView.m
//  PDFViewer
//
//  Created by kdanmobile_2 on 2022/12/23.
//

#import "PDFWatermarkClipView.h"

@implementation PDFWatermarkClipView

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    
    if (self) {
        self.backgroundColor = [UIColor clearColor];
    }
    
    return self;
}

- (void)drawRect:(CGRect)rect {
    [super drawRect:rect];
    
    CGContextRef context = UIGraphicsGetCurrentContext();
    
    CGContextSetFillColorWithColor(context, [UIColor grayColor].CGColor);
    CGContextFillRect(context, self.frame);
    CGContextClearRect(context,_documentRect);
}

@end