In the program you have the choice between "split" or "join". In the former, you have the option to split a multi-page file into individual PDF pages. Alternatively, you can define specific areas. Select the destination and "Icecream PDF Merge & Split" will create your files.
The Merge function allows you to convert individual files into a single PDF file. Simply drag and drop various PDF files into the field and confirm the conversion process.
"Icecream PDF Merge & Split" can also open password-protected files.