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We Lost informations when saving VSMD file in VSDM again with Aspose.Diagram


When we manipulate a VSDM file with Aspose.Diagram ( we open it) and save it in the save format (VSDM) we lost some informations that were inside this file.

This was done with Aspose.Diagram version

You can find all the explanations and examples in the ZIP file Elements.zip

Elements.zip (3.0 MB)



Thanks for contacting support.

We have logged an issue as DIAGRAMNET-51768 in our issue tracking system after testing the scenario with Aspose.Diagram for .NET 20.2. We will further look into details of it and keep you posted with the status of its correction. Please be patient and spare us little time.

We are sorry for the inconvenience.


We would like to share with you that earlier logged issue has been resolved in hotfix Aspose.Diagram for .NET 20.2.1.

The issues you have found earlier (filed as DIAGRAMNET-51768) have been fixed in Aspose.Diagram for .NET 20.3.


I made a test, and with this file the issue seems to be resolved.
But there are always two problems :
1°) The outputfile is greater than before. The “OriginalDocument.vsdm” size is 1850 ko, and after saving it as VSDM it’s now 2111 ko (OriginalDocument_output.vsdm)
If you unzip OriginalDocument_output.vsdm then you can see that the directory MEDIA as a lot off images now.

2°) If I test with this file (test_1.vsdm) , then when saving as VSDM the result is a smaller file ( test_1_output.vsdm) but the macros doesn’t work, and the content as changed as before.

All the files are in the zip

Elements_2.zip (5.7 MB)