Downloading Cacidi Cropmarks 3.0 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. The application is included in Audio & Video Tools. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The actual developer of this software for Mac is Cacidi Systems.
From the developer:
Cacidi Cropmarks lets you create all sorts of crop and bleed marks. The Cropmarks app comes with a wide variety of different bars and symbols. However, you can even create your own snippets and use them as symbols and information blocks. The Cacidi Cropmarks has three different panels: Crop & Bleed Marks, Folding & Text, and Bars & Symbols.
You may want to check out more Mac applications, such as MFilter, Aiseesoft WMV Converter for Mac or AkBrowser, which might be related to Cacidi Cropmarks.