There is a limit, the size is probably too big.

@Person - 

The error message “An error occurred in the external doc service. ServFileDownloadError” is not a common one. 

Check the Document: Ensure that the documents you’re trying to send are not corrupted. You can do this by opening and saving them as new files in a PDF reader. If the files are corrupted, this process might fix the issue.
 

Hi @Person,

I hope you are doing well.

I would like to confirm if you were able to solve your issue by utilizing the solution that was suggested or if the information that was provided was useful.

If so, please mark it as the best answer by clicking “Select as Best” to make it easier for other users to find.

Otherwise, feel free to let me know and I will gladly help you address the situation as soon as possible.

Best regards,

Christopher | Docusign Community Moderator

"Select as Best" below if you find the answer a valid solution to your issue.

Thank you for your reply. Neither of the above responses resolved my issue because my files were not at fault.  They were not corrupted and they were the appropriate size, as I had stated in my initial post.

After several frustrating attempts to determine the error, what ended up working was saving the documents to a different file location.  For some reason, DocuSign would not upload the documents from the original source, even though it was of the identical type that it eventually accepted.

It is unfortunate that DocuSign does not provide a solution for the error message I encountered in its FAQs, or list the solution I found for others who might also run into it.  I hope that DocuSign will consider adding this information to its FAQs for other users to save them the hours of trouble that I spent.