1.Users can easily merge many PDF files into a single PDF or split a PDF to multiple PDFs with
Simpo PDF Merge & Split
How to merge many PDF files into one and split a PDF to multiple PDFs

2. Merge many PDF files into one
3. The interface to merge
4. Step 1, download the PDF merger
Go to http://www.simpopdf.com/pdf-merger.html to download it and install
5. Step2, import PDF files
Click the Add button to import PDF files. And use the Ctrl button in the keyboard for help if you need to import a batch of PDF files.
Remove button is used to delete PDF files wrongly added;
Clear button can help clear all added PDF files at a time;
Users can also adjust the position of each PDF with Up and Down buttons.
If you add a PDF file with password, just click Password button to enter the correct password.
6. Step3, choose merge method
Simpo PDF Merge & Split supports to merge PDF files in two ways: Whole and Part. Whole means that you want to merge all pages of a PDF file with another PDF; Part is one way to select specific PDF pages to merge with another PDF.
You can enter pages number as below:
7. Step4, advanced settings
At the bottom of the interface, users can set the Base name and choose another Output Folder to locate the merged PDF file.
Users also can set password to protect merged PDF. Click Advanced Setting and enter password as below:
8. Step5, merge PDF files into one
All settings are done; now you can click the Merge button to start to merge all added PDF files together into one.
9. The interface to split
10. Step 1, download the PDF splitter
Go to http://www.simpopdf.com/pdf-splitter.html to download it and install
11. Step2, add a PDF file
Click the button to add the PDF file you want to split.
View PDF: Preview the added PDF file;
12. Step3, select split method
Simpo PDF Merge & Split allow users to split a PDF in three methods:
A) split a PDF by every N page(s). This way means to divide the PDF into multiple PDF files with same N PDF pages.
B) extract page(s).Users can extract specific useful PDF pages from a PDF to be a new one.
C) remove page(s). If you want to delete pages from a PDF, this is a suitable way to remove specific PDF pages and retained pages will be saved as a new PDF.
13. Step4, advanced settings
Advanced settings are the same as to merge many PDF files. Users can give a new Base name to splitted PDF files, choose another Output Folder to locate them and set password to protect them via Advanced Setting.
14. Step5, split a PDF to multiple PDFs
All settings are done; now you can click the Split button to split the added PDF file into multiple PDFs.