Thank you for contacting support. We managed to replicate the problem of blank PDF and error messages while exporting to the BMP and JPEG formats. However, VDX to SVG export looks perfect to us when using Aspose.Diagram for Java API version 5.8.0. We have attached its resultant SVG document for your kind reference. Please download and use the latest version 5.8.0 and then let us know how it goes on your side. We have logged all replicated issues as follows:
DIAGRAMJAVA-50263 - VDX to PDF export, the resultant PDF is blank
DIAGRAMJAVA-50264 - VDX to BMP export, a negative array size exception occurred
DIAGRAMJAVA-50265 - VDX to JPEG export, an argument exception occurred
Your post has also been linked to these issues. We’ll keep you informed regarding any available updates. We’re sorry for the inconvenience caused.