Download of Doclight 1.4 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software lies within System Tools, more precisely File Managers.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The actual developer of this free Mac application is Muharrem Ozkan.
From the developer:
Doclight is a utility that instantly finds the page you are looking for from hundreds of documents. It is system-integrated. You can start a search directly from a system menu bar like Spotlight. You don't need to wait for the documents to open. You just see the resulting pages and navigate conveniently among them.
You may want to check out more Mac applications, such as pdf-FieldMerge, which might be similar to Doclight.