Interface. Merge panel
It is possible to merge several PDF files into one by means of this panel. It is split in two: the upper one is a queue of files that are supposed to be merged, and the bottom one is the “File settings” panel.
In the upper part of the Merge panel there is the "Add file” section for adding the desired files for subsequent merging. It is also possible to correct the positions of added files and delete them from the queue. You can learn more about it in the “File queue” section of the manual.
This section of the window is for specifying a desired output location and output file name. You can read more about these two parameters in the “Output file settings” section of this manual.