researcher expert in 0days for pdf files

The task is to develop the ability to convert a PDF document into another PDF document, while the new PDF will have a program (exe) embedded in it so opening the new PDF will also open the program. Platform: Windows 7, Windows, Windows 8.1, Windows 10 32 and 64 bit PDF Readers: Gmail (Google Chrome), Acrobat Reader Requirements: 1. No pre-installation should be required 2. Single PDF should do the job (no other files should be required) 3. Deliverables should be the tool that is used to build the new PDF Needless to say, the entire process should be 100% silent and 100% FUD The project IS NOT about hacking but about research for vulnerabilities and demonstrating them (POC) so they can be patched. An ideal freelancer should be a security researcher who have found a vulnerability in PDF files which hasn't been published yet, and if hired will create a proof of concept program, using Visual Studio c++, which will demonstrate how a PDF file can embed an executable and when opened, execute this program. For the purpose of demonstrating, such candidate should be able to create a PDF file that when opened, launch the Windows Calculator or Notepad. Please elaborate whether you have found any 0days in the past and how you intent to implement this one?