Include a file's permalink in Content block

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Hello. I'm using content blocks and tables to present some data on my site.
In certain paragraphs I have to include a link to a file on my website, using simple <a> tags like so:
This <a href="link to a file.pdf">file</a> will provide more information.</a>

Redactor has a Link button that pretty much does almost everything that you'd expect, but the link it outputs is actually a redirect:

<a href="/index.php/download_file/view/5" data-concrete5-link-type="image">file</a>

When clicked it instantly redirects to the file's real URL, which is mostly fine; but I need it to output the real direct URL in the first place, omitting the "download_file/view/file/" method. Any ideas?


Edit: The reason why I'd like it to output the "real" direct URL is to provide support for inline image viewer browser addons, which open linked images in a little pop-up window; but only if the link leads to the actual file and ends with a file extension like .jpg or .png.

Discovered now: surprisingly, adding any common image extension to the generated "middleman" URL seems to work: hovering over the manually modified /download_file/view/file.jpg/ link will cause the addons to display the image as usual, even if the actual final file destination is one step further than the generated link.
Consider the issue partially solved. It'd still be nice to know if you can make Redactor output the direct file address, so if anything comes to your mind, go ahead.

OrionFOTL