Hello Pamm,
In Adobe Reader, you can use the " Save As Other" feature to save the PDF in Text, or Excel or Word online.
What are the options you are getting when you click on File>Save As other?
Please check the PDF properties from File menu of Adobe Reader>Properties>Security and see if the Changing the Document option is available and is allowed?
Also, Saving a digitally signed PDF invalidates the signature.
Saving PDFs in Adobe Acrobat and Reader
Is it possible to post the screenshot of the Document Properties Security Window of the PDF? To share the screenshot, refer to https://forums.adobe.com/docs/DOC-7043#jive_content_id_How_do_I_attach_a_screenshot
Is it possible to share the PDF file with us so that we can check it at our end? To share the file, please use Adobe Send feature, login to https://cloud.acrobat.com/send using your Adobe ID(email) and password, upload the file, share the link to files via private message only, How Do I Send Private Message
What is the dot version of Adobe Reader installed? To identify, refer to Identify the product and its version for Acrobat and Reader DC
is it a Mac or Windows machine and what is the version?
Let us know how it goes and share your observation.
Thanks,
Anand Sri.