如何在完全下载之前将pdf显示在Web浏览器中

I have a client that's been struggling with slow loading pdf files on the web. My client has some very large pdf files that are almost 10 Mb. They take upwards of 3-4 minutes to download. The files will not display until the whole file is loaded. We and they have seen other's sites where the pdfs load one page at a time, so the end user can start looking at the file as the rest of the page is still loading in the background. Gives the illusion that the page has loaded faster.I have a client that's been struggling with slo