I accidentally deleted my PDFs from iBooks how can I retrieve

Hello Ineedhelpplease63,

Thank you for using Apple Support Communities! I understand that you accidentally deleted a PDF from the Apple Books app and iCloud, and you're wanting to know if there's a way to recover it. I would be happy to help explore options to consider.

If you have an iCloud backup that was made while the PDF was still in Apple Books on your device, it may be possible to recover by restoring your iPhone from that backup. This would erase any data saved to your iPhone after the date the backup was made. Here's how you can locate potential backups for your device:

Locate backups of your iPhone, iPad, and iPod touch - Apple Support

If you locate a backup that you'd like to restore your device from, follow these steps:

Restore your iPhone, iPad, or iPod touch from a backup - Apple Support

If you're unable to restore the PDF from a backup, it may be unrecoverable. In that case, the PDF would need to be saved to the Apple Books app again from its original source:

Save and edit PDFs on your iPhone, iPad, or iPod touch with the Books app - Apple Support

Take care.