Text Deleted while Editing and cannot save

Hello,

We're sorry for the trouble you had. There is no such Adobe product "Adobe Acrobat Reader Pro DC". We have the freeware Adobe Reader DC desktop application and Adobe Acrobat Pro DC.

With Adobe Reader DC, you cannot edit a PDF file. You can edit a PDF file with Acrobat Pro DC. Are you using Acrobat Pro paid version or the freeware Adobe Reader? To identify the product and it's version, please refer to the Adobe article Identify the product and its version for Acrobat and Reader DC

Are you referring to adding comments Use annotation and drawing markup tools to add comments in PDFs, Adobe Acrobat and Acrobat Reader in a PDF which is possible with Adobe Reader and Acrobat Pro, or trying to edit a PDF using Acrobat Pro DC?

Are you trying to fill a PDF form?

Is it a Mac or Windows machine and what is the version of OS installed?

For the error, you may refer to the following Adobe discussions "The document could not be saved. A file error has occurred."

The Document Could Not Be Saved. An Unexpected Network Error Occurred.

We're here to help, just need more info.

Thanks,

Anand Sri.