May I know the workflow that you are using to attach the PDF in the mail?
1. Are you using Acrobat Reader mobile to send the PDF as an attachment. Also which email client you are using to send the email?
2. Or you are using File Explorer and sending the PDF to the mail client.
3. Or you are directly attaching the PDF from the compose window of the email client.
If it is from Document Cloud then try to download the file manually the file and attach it.
Good morning. I hope you are well and thank you for the fast response. From the tablet, I open my email (Outlook) typically, in the email I have a PDF attachment (from a desktop using Adobe Acrobat Reader), I open the PDF using the Adobe Acrobat Reader directly from the email. I make all necessary changes once opened with Adobe acrobat reader and I send it directly from there by touch the three connected dots at the bottom right corner. I click Share and it opens an option box where I select my Outlook email. once composing the email, I can see the attachment I input the email where its being sent to and hit send.
again the person at the other end does not receive it.
First of all I'll suggest you to try using a different email app (like Gmail) to send the PDF as an attachment from Acrobat Reader.
As other option just for testing purpose try to use the Share as Public Link feature.
Let me know the results.