Qoppa PDF Studio is described as 'Create, Convert, Review and Edit PDF Documents on Windows, macOS, and Linux' and is a popular PDF Reader in the office & productivity category. There are more than 100 alternatives to Qoppa PDF Studio for a variety of platforms, including Windows, Mac, Web-based, iPhone and Android apps. The best Qoppa PDF Studio alternative is Okular, which is both free and Open Source. Other great apps like Qoppa PDF Studio are Foxit PDF Reader, PDF-XChange Editor, MuPDF and Evince.
Merge PDF is a user friendly PDF Reader. It is fully compatible with PDF file formats. It is a great value in comparison to other PDF Readers. It is part of Merge Soft Office. Now, Merge Soft Office is built on true 64-bit technology and it is being developed in 32-bit as well...
This free online tool switches the black pixels in PDFs to dark blue or another color that is not black. It makes printing without black ink possible.
