Modification of Font Size and Font Style in UIWebView Control

Modify the style of fonts in UIWebView controls:

NSString *htmlString = [NSString stringWithContentsOfFile:self.webPath encoding:NSUTF8StringEncoding error:nil];
UIFont *font = [UIFont systemFontOfSize:12];
NSString *newHtmlString = [NSString stringWithFormat:@"<font face='%@' >%@", font.fontName,htmlString];
[self.myWebView loadHTMLString:newHtmlString baseURL:[NSURL URLWithString:self.webPath]];

Where self. webPath is the path of the local web page.

Modify the font size in the UIWebView control:

NSString *str = @"document.getElementsByTagName('body')[0].style.webkitTextSizeAdjust= '60%'";
[self.myWebView stringByEvaluatingJavaScriptFromString:str];

You can modify the percentage as needed.