Hi,
Like we have a standard VBO for excel, outlook etc with Interop, one standard VBO for PDF with Adobe Acrobat DC Interop will be very useful to perform common actions on PDF like read entire text, count number of pages, convert PDF to excel or images, search for a text on a particular page, find page number of particular text etc.
Acrobat DC has good library mentioned here -
1)
https://www.adobe.com/content/dam/acom/en/devnet/acrobat/pdfs/iac_api_reference.pdf2)
https://www.adobe.com/content/dam/acom/en/devnet/acrobat/pdfs/iac_developer_guide.pdfLot of these functions can be used to create a code based VBO
User will install Acrobat DC on their machine like they install Microsoft office.