You can select two or more PDF files to merge into one continuous PDF document.

First you have to add PDF files to the list with the "Add"
button on the right. Select one or many PDF files in one step and you can see them
in the list.
You can reorder the selected PDF documents using the "Up"
and the "Down"
buttons.
If you would like to remove a file from the list, select the file and push the "Remove"
button.
After you selected all the files you would like to merge, use the "Select output PDF file" button to choose the directory and enter the name of the PDF file you would like to get as result.
Use the "Save as WWF" checkbox if you would like to save the result document in WWF format.
The last step is to press the "Go" button to start the process.
If the program finds a PDF file which is password protected, it will ask for the password and can not finish to merge all selected document until the password is provided.
Please be aware that the new file won't be password protected!
This function is only available in PDFToolBox and PDFMerge!