问题
I have a project that uses a UIWebView to display a single page PDF file. I would like this content to fit by height (vertically). The default is only to fit width (horizontally). Is there any way to overcome this?
回答1:
I ran against the same problem and couldn't find a way to do it with UIWebView. If you only want to display a single PDF-page, you can pretty much take the code from Apple's ZoomingPDFViewer Example.
I took the two classes PDFScrollView and TiledPDFView and with a little adjustment for my project, I was easily able to use it to display a single PDF page.
来源：https://stackoverflow.com/questions/2577663/how-to-fit-pdf-height-in-uiwebview-in-iphone-ipad