Scribus User Mailing List is very active.

This tool was the first software to support several new generations of Adobe's PDF specifications well ahead of the commercial software. The Team makes it its highest priority to respond to PDF generation inquiries without delay. The PDFs are being constantly tested on both cutting edge printing house equipment and low-budget printers. Scribus produced PDF files are RIP-ready. Professionals and amateurs are producing top-quality publications with the tool, which is why the list of program success stories keeps growing year after year. The software is licensed under the General Public License, which makes it free and legal for use in any setting including commercial and governmental organizations.

The easiest to point out aspect - the software is Free. Underneath a modern and user-friendly interface, Scribus 64-bit supports professional publishing features, such as color separations, CMYK and spot colors, ICC color management, and versatile PDF creation. Scribus 64-bit is an Open Source program that brings professional page layout to Linux, BSD UNIX, Solaris, OpenIndiana, GNU/Hurd, macOS, OS/2 Warp 4, eComStation, Windows, and Haiku desktops with a combination of press-ready output and new approaches to page design.

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