2 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
3 NSString *saveDirectory = [paths objectAtIndex:0];
4 NSString *saveFileName = @"myPDF.pdf";
5 NSString *newFilePath = [saveDirectory stringByAppendingPathComponent:saveFileName];
6 const char *filename = [newFilePath UTF8String];
7 CGRect pageRect = CGRectMake(0, 0, 612, 792);
8 // This code block sets up our PDF Context so that we can draw to it
9
10
11 CGContextRef pdfContext;
12 CFStringRef path;
13 CFURLRef url;
14 CFMutableDictionaryRef myDictionary = NULL;
15 // Create a CFString from the filename we provide to this method when we call it
16 path = CFStringCreateWithCString (NULL, filename, kCFStringEncodingUTF8);
17 // Create a CFURL using the CFString we just defined
18 url = CFURLCreateWithFileSystemPath (NULL, path, kCFURLPOSIXPathStyle, 0);
19 CFRelease (path);
20 // This dictionary contains extra options mostly for ‘signing’ the PDF
21 myDictionary = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
22 CFDictionarySetValue(myDictionary, kCGPDFContextTitle, CFSTR("My PDF File"));
23 CFDictionarySetValue(myDictionary, kCGPDFContextCreator, CFSTR("My Name"));
24 // Create our PDF Context with the CFURL, the CGRect we provide, and the above defined dictionary
25 pdfContext = CGPDFContextCreateWithURL (url, &pageRect, myDictionary);
26 // Cleanup our mess
27 CFRelease(myDictionary);
28 CFRelease(url);
29
30 // Done creating our PDF Context, now it’s time to draw to it
31 // Starts our first page
32 CGContextBeginPage (pdfContext, &pageRect);
33
34 UIImage* myUIImage = img;
35 CGImageRef pageImage = [myUIImage CGImage];
36 CGContextDrawImage(pdfContext, CGRectMake(0,0,([myUIImage size].width) , ([myUIImage size].height)), pageImage); //繪製圖片
37 // Draws a black rectangle around the page inset by 50 on all sides
38 // CGContextStrokeRect(pdfContext, CGRectMake(50, 50, pageRect.size.width - 100, pageRect.size.height - 100));
39
40 // Adding some text on top of the image we just added
41 // CGContextSelectFont (pdfContext, "Helvetica", 30, kCGEncodingMacRoman);
42 CGContextSetTextDrawingMode (pdfContext, kCGTextFill);
43 CGContextSetRGBFillColor (pdfContext, 0, 0, 0, 1);
44
45
46
47 UIGraphicsPushContext(pdfContext); //將需要繪製的層push
48 CGContextTranslateCTM(pdfContext, 0, 792); //轉換Y軸座標, 底層座標與cocoa 組件不同 Y軸相反
49 CGContextScaleCTM(pdfContext, 1, -1);
50
51 // CGContextShowTextAtPoint (pdfContext, 260, 390, [text UTF8String], strlen([text UTF8String])); //漢字不正常
52
53 [text drawAtPoint:CGPointMake(80, 80) withFont:[UIFont systemFontOfSize:18]]; //繪製漢字
54
55 // UIFont *font = [UIFont systemFontOfSize:15 ]; //自定義字體
56 // CGContextSetFillColorWithColor(pdfContext, [UIColor blackColor].CGColor); //顏色
57 // [text drawAtPoint:CGPointMake(260,390) forWidth:50 withFont:font minFontSize:8 actualFontSize:NULL lineBreakMode:UILineBreakModeTailTruncation baselineAdjustment:UIBaselineAdjustmentAlignCenters];
58
59 UIGraphicsPopContext();
60
61
62 CGContextStrokePath(pdfContext);
63
64 // End text
65 // We are done drawing to this page, let’s end it
66 // We could add as many pages as we wanted using CGContextBeginPage/CGContextEndPage
67 CGContextEndPage (pdfContext);
68 // We are done with our context now, so we release it
69 CGContextRelease (pdfContext);
70 }
1 - (void)viewDidLoad
2 {
3 [super viewDidLoad];
4 // Do any additional setup after loading the view, typically from a nib.
5
6 //調用方法
7 [self createPdf:[UIImage imageNamed:@"aa"] andText:@"漢字"];
8
9 }
轉自：http://www.cppblog.com/Khan/archive/2013/03/18/198566.html