How to scan barcode from a scanned PDF

Hello guys,

I am trying to read bar code from scanned pdfs, not from digital pdfs (where we can select text).
Could any one help what approach I should follow. ? i gone through one available post on this but getting any solution here- How to Scan QR code in scanned pdf's

I have package available which can read barcode if if pass only bar code image as input. SO issue comes when i am using scanned pdf .
There are two activities available -

  1. Extract Images From PDF
  2. Export PDF Page As Image

None of these two are able to extract bar code from scanned pdf.

Is there any other solution of this problem ?
Please let me know.,