The 1.0 version of PowerCopy for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application is an intellectual property of woowave. 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 software is included in Productivity Tools.
From the developer:
PowerCopy lets you copy few fragments from different documents and paste them at once without going backwards and forwards. Therefore, you can go through some document and copy something, then go and copy something else as well. The previous copied text is not lost, actually the clipboard contains all your copies. So when you paste the content, it will contain all copied texts separated with blank line.
You may want to check out more Mac applications, such as ReClip, StringEscaper or Pastarena, which might be related to PowerCopy.