Master PDF Editor 4 though, which is free for non-commercial use with no restrictions (at least on Linux, I'm not sure about macOS and Windows), can still be downloaded and works well, even though it's not linked on the application official website.
There is a Qt5 version (64-bit only) and a Qt4 version for 32 & 64-bit.
http://code-industry.net/public/master- ... .amd64.deb
https://code-industry.net/public/master ... 9_i386.deb
In case your Linux distribution doesn't use DEB or RPM packages and you have to use the .tar.gz, make sure to install qt5-base and qt5-svg, which are required by Master PDF Editor.
https://www.linuxuprising.com/2019/04/d ... prising%29
