The DomPDFPages function returns the number of pages in a generated PDF file.
The DomPDFMerge function is used to merge two or more existing PDF files into a single PDF file.
The DomPDFEncrypt function is used to encrypt an existing PDF file and set permissions, strength etc.
The DomPDFAddText function is used to add or "stamp" text to an existing PDF file.
The DomPDFAddImage function is used to add or "stamp" images to an existing PDF file.
The DomPDFPrint function is used to print an existing PDF file to a printer.
The DomPDFAddJavaScript function is used to add Document, Page and Open JavaScript to an existing PDF file.