How to transfer PDF file format from bank into quickbooks banking transactions?

You need a converter tool. You can use this one.

https://www.moneythumb.com/?ref=110

Hi peach_rufiange-h,

I'd like to welcome you to Community!  When manually uploading your transactions to QuickBooks Online, there are a few file formats offered by financial institutions.  To ensure a smooth transition, you'll want to select .QBO format, or .CSV file.  These are formatted specifically for QuickBooks Online.  I'm happy to share this article, to assist with uploading your transactions seamlessly in QuickBooks Online.  

Please don't hesitate to ask other questions.  We are here to help!