MAC OS Preview Quick Jump PDF Page Home end

When browsing hundreds of pages of PDF files in the preview (Preview), you may encounter situations where you need to jump to the end of the page, in addition to the roll ... roll ... roll is there a quick way to jump?

Method One: Hold down the Option key, click on the top or bottom of the scroll bar

Method Two: Hold down the Option key and click on the previous page or Next button on the toolbar

You can quickly jump to the top or end of a file by using both of these methods. But interestingly, method two in the operation if you first press the Option key and then click the button will find the button is not available, you need to get the focus on the button before the key, click Operation, and hold down the Option key time can not be too long, otherwise it will lose the focus of response. Don't know why? Update: Of course, you can also use the "several keys to use when the cursor positioning" cursor positioning shortcut keys: FN + LEFT arrow/right button head = Page head/footer via Macworld