Question

I have set of few images in documents directory of my project. I want a pdf file created in my iPhone app in documents directory itself from those images. I mean pdf with multiple images. I am able to find create a pdf for a single image but not able to find any reference code to create pdf file of multiple images.

Thanks.

Answer 1

每一图像在屏幕外的<密码>,IDWebView。然后,每个图像都要做到如下:

            CGRect r = CGRectMake(0, 0, 612, 792); //default PDF size
            CGContextBeginPage (pdfContext,nil); //pdfContext is the CGContextRef of the PDF document
            //turn PDF upsidedown   
            CGAffineTransform transform = CGAffineTransformIdentity;    
            transform = CGAffineTransformMakeTranslation(0, r.size.height);   
            transform = CGAffineTransformScale(transform, 1.0, -1.0);   
            CGContextConcatCTM(pdfContext, transform);  
            [self.webView.layer renderInContext:pdfContext];    
            CGContextEndPage (pdfContext);

这样,每个图像都将在国防军一页上结束。

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