You may experience a situation where Umango creates blank pages when importing PDF documents. This may occur when Umango is importing pdf's using a watched folder from Umango's Windows service (job services).
This is due to a bug in a September 2017 Windows update of .NET. To resolve the problem you have 4 options -
1. Install the Microsoft update that resolves the issue (recommended option). Please see this Microsoft Knowledge Article with related links.
2. Uninstall any of the following problematic Windows updates for your related operating system -
|
Operating
System |
Problematic
KB / Update |
|
Windows Server 2008 |
4040977, 4040973, 4041086 |
|
Windows Server 2008 R2 |
4040977, 4040973, 4041083 |
|
Windows 7 |
4040977, 4040973, 4041083 |
|
Windows Server 2012 |
4040975, 4040971, 4041084 |
|
Windows Server 2012 R2 |
4040974, 4040972, 4041085 |
|
Windows 8.1 |
4040974, 4040972, 4041085 |
3. Limit your job workflow to only reading TIF format files (not pdf format) or;
4. Only import PDF files when running in the foreground. Importing PDF files when running in the Windows service introduces the issue.
If you're interested to read more about the issue there is a Microsoft discussion link on this issue below.
https://connect.microsoft.com/VisualStudio/feedback/details/3141218
Link to this article http://umango.com/KB?article=79