I have ran into many situations and businesses that wished we had a way to merge multiple report pdfs into one pdf. Many times the use case is an executive report for a higher level exec or business client contact that might not want to get 10+ different emails with 10+ different pdfs and instead just wants one email from an operational team per month with one attachment containing all reports.
Attached is a powershell script that makes use of the PDFsharp assemblies (included in attachment as well) that allows you to merge all PDFs in a given folder into one PDF via the CLI. In the script, you will need to point to the full path of the dll as such:
Add-Type -Path C:\scripts\PDFsharp-MigraDocFoundation-Assemblies-1_31\GDI+\PdfSharp.dll
CLI Syntax: mergePDFs.ps1 –path c:\scripts\pdfdirectory –filename c:\scripts\mergedexecutivereport.pdf
Hope this helps,
RSA Professional Services