I cannot delete pages from a pdf files. Please let me know how to fix it as soon as possible. Thank you.
1
vote

If you do not see “Delete Pages” in page thumbnail pane, please check the document restrictions summary under “Document Properties> Security” tab to confirm if have restricted permissions.
Read more at https://helpx.adobe.com/acrobat/using/choosing-security-method-pdfs.html
I hope this helps.