Web publishing startup DocStoc is launching a customized document viewer today, allowing anyone to create easily embeddable, branded document viewers. The new feature is open to all DocStoc users and offers the ability to customize the logo, buttons, links, and color of the viewer.

The viewer itself is fairly sleek and resembles DocStoc’s normal document viewers. Users can directly download documents from the viewer and DocStoc will automatically convert any convert historical embeds with Docstoc. For example, all of the documents we’ve embedded with our TechCrunch DocStoc account will now include our branded viewer.

Also included in the viewer is the ability to monetize on the publisher side. So publishers can choose to put streams of ads in the viewers, which is operated by DocStoc. DocStoc and the publisher will then share in any advertising revenue.

Competitor Scribd launched branded viewers in October, but the feature appears to be only available to select publishers. The startup just launched a new marketplace for professional documents and with 3 million registered users, DocStoc is now profitable. Nazar says that the company is seeing 20 million uniques per month and is growing rapidly as a business focused site. Branded and customizable viewers works into this vision nicely.

Here’s an example of the TechCrunch branded viewer: