How to create pdf file using html in iOS [closed] - ios

Question

Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 7 years ago.
Improve this question
I want to generate a pdf file with text that will change every time based on my server data. I want to create that pdf file using html in iOS. Any suggestions. Please help.
Thanks in advance.

Answer 1

Please check below link :
https://github.com/iclems/iOS-htmltopdf.
Its have methods for doing that with local html file as well as with URL also.
+ (id)createPDFWithHTML:(NSString*)HTML pathForPDF:(NSString*)PDFpath delegate:(id <NDHTMLtoPDFDelegate>)delegate pageSize:(CGSize)pageSize margins:(UIEdgeInsets)pageMargins;
+ (id)createPDFWithHTML:(NSString*)HTML baseURL:(NSURL*)baseURL pathForPDF:(NSString*)PDFpath delegate:(id <NDHTMLtoPDFDelegate>)delegate pageSize:(CGSize)pageSize margins:(UIEdgeInsets)pageMargins;
+ (id)createPDFWithHTML:(NSString*)HTML pathForPDF:(NSString*)PDFpath pageSize:(CGSize)pageSize margins:(UIEdgeInsets)pageMargins successBlock:(NDHTMLtoPDFCompletionBlock)successBlock errorBlock:(NDHTMLtoPDFCompletionBlock)errorBlock;
+ (id)createPDFWithHTML:(NSString*)HTML baseURL:(NSURL*)baseURL pathForPDF:(NSString*)PDFpath pageSize:(CGSize)pageSize margins:(UIEdgeInsets)pageMargins successBlock:(NDHTMLtoPDFCompletionBlock)successBlock errorBlock:(NDHTMLtoPDFCompletionBlock)errorBlock;

Answer 2

You can try this:
You need to show it on webview like this
-(IBAction)convertPDF:(id)sender {
webViewHeight = [[self.myWebView stringByEvaluatingJavaScriptFromString:#"document.body.scrollHeight;"] integerValue];
CGRect screenRect = self.myWebView.frame;
double currentWebViewHeight = webViewHeight;
while (currentWebViewHeight > 0)
{
imageName ++;
UIGraphicsBeginImageContext(screenRect.size);
CGContextRef ctx = UIGraphicsGetCurrentContext();
[[UIColor blackColor] set];
CGContextFillRect(ctx, screenRect);
[self.myWebView.layer renderInContext:ctx];
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *pngPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:#"%d.png",imageName]];
if(currentWebViewHeight < 960)
{
CGRect lastImageRect = CGRectMake(0, 960 - currentWebViewHeight, self.myWebView.frame.size.width, currentWebViewHeight);
CGImageRef lastImageRef = CGImageCreateWithImageInRect([newImage CGImage], lastImageRect);
newImage = [UIImage imageWithCGImage:lastImageRef];
CGImageRelease(lastImageRef);
}
[UIImagePNGRepresentation(newImage) writeToFile:pngPath atomically:YES];
[self.myWebView stringByEvaluatingJavaScriptFromString:#"window.scrollBy(0,960);"];
currentWebViewHeight -= 960;
}
[self drawPdf];
}
then draw PDF from webview
- (void) drawPdf
{ CGSize pageSize = CGSizeMake(612, webViewHeight);
NSString *fileName = #"Demo.pdf";
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *pdfFileName = [documentsDirectory stringByAppendingPathComponent:fileName];
UIGraphicsBeginPDFContextToFile(pdfFileName, CGRectZero, nil);
// Mark the beginning of a new page.
UIGraphicsBeginPDFPageWithInfo(CGRectMake(0, 0, pageSize.width, pageSize.height), nil);
double currentHeight = 0.0;
for (int index = 1; index <= imageName ; index++)
{
NSString *pngPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:#"%d.png", index]];
UIImage *pngImage = [UIImage imageWithContentsOfFile:pngPath];
[pngImage drawInRect:CGRectMake(0, currentHeight, pageSize.width, pngImage.size.height)];
currentHeight += pngImage.size.height;
}
UIGraphicsEndPDFContext(); }
In viewDidLoad
- (void)viewDidLoad
{
[super viewDidLoad];
NSString *path;
NSBundle *bundle = [NSBundle mainBundle];
path = [bundle pathForResource:#"Demo" ofType:#"html"];
NSURL *fileUrl = [NSURL URLWithString:#"https://www.google.com/sites/overview.html"];
[self.myWebView loadRequest:[NSURLRequest requestWithURL:fileUrl]];
}