Low quality pdf generated

Question

i want to create pdf from uiview but the quality of generated pdf is poor.How can i create high quality pdf.

Answer 1

Here is my code to create pdf of UIView.
- (IBAction)drawPdf:(id)sender {
    // Creates a mutable data object for updating with binary data, like a byte array
    NSMutableData *pdfData = [NSMutableData data];
    // Points the pdf converter to the mutable data object and to the UIView to be converted
    UIGraphicsBeginPDFContextToData(pdfData, self.view.bounds, nil);
    UIGraphicsBeginPDFPage();
    CGContextRef pdfContext = UIGraphicsGetCurrentContext();
    // draws rect to the view and thus this is captured by UIGraphicsBeginPDFContextToData
    [self.view.layer renderInContext:pdfContext];
    // remove PDF rendering context
    UIGraphicsEndPDFContext();
    // Retrieves the document directories from the iOS device
    NSArray* documentDirectories = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES);
    NSString* documentDirectory = [documentDirectories objectAtIndex:0];
    NSString* documentDirectoryFilename = [documentDirectory stringByAppendingPathComponent:[NSString stringWithString:@"createdPDF.pdf"]];
    // instructs the mutable data object to write its context to a file on disk
    [pdfData writeToFile:documentDirectoryFilename atomically:YES];
    NSLog(@"documentDirectoryFileName: %@",documentDirectoryFilename);
    UIImage *currImage = [self imageByRenderingView];
    NSData *data=UIImagePNGRepresentation(currImage);
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *filePath = [documentsDirectory stringByAppendingPathComponent:@"pngFile.png"];
    BOOL save=[data writeToFile:filePath atomically:YES];
    NSLog(@"BOOL = %@", (save ? @"YES" : @"NO"));
//    NSLog(@"path :%@",filePath);