Urgent:Error while checkout/opening pdf file from Sharepoint Online

Hi there,

I am Sharepoint admin and a team of users is facing a very troublesome problem that is impacting their Sharepoint Workflow.  This workflow routes a fillable pdf form to various team members. The pdf file was created using Adobe LiveCycle.

When the user tries to open the file, the error they get is "Adobe Acrobat Reader cannot check out the document due to a network error. Would you like to down load and open a local copy of the document"

Some older versions of this document do not have this issue. I have tried comparing the properties of the 2 docs and cannot see any difference. This is causing the team to manually forward the documents to each other, defeating the very purpose of using collaborative tools like Sharepoint and Adobe.

Here are some details that might help you:

Sharepoint version: Sharepoint Online/Office365

PDF producer: Adobe LiveCyle Designer 11.0

PDF version: 1.7, Adobe Extension Level 8 (Acrobat X)

File size: 1.33 M

PDF viewer: Adobe Pro, Adobe Acrobat Reader DC Version 2018.011.20055

Thanks,

Pradeep