Here is a work around to make your PDFs or other files available online and be able to share from your own blog.
1. Login to Google drive2. Click "New" from the top left3. Select "Files" from the drop down options4. Now select the file from your computer that you want to be made available online5. Once the file is uploaded, select "Share" from the options available6. Here select "Get Link"option. This will give you the link you can access this file from.
1. You can type in the text you want to link the file to and select the "link" option from the editor window. From there, enter the link you want the text to be linked to. This does the same the HTML code does as mentioned above.
Hope this helps.