Wrong labels in diagram legend while saving xlsx to pdf

The rendered pdf has some wrong labels in diagram legend. I marked them.
Can you please inspect this issue

Strahlendzeiten2026_D03742_1_4.zip (259.1 KB)

PDF.png (73.0 KB)

Excelpng.png (54.5 KB)

Strahlendzeiten2026_D03742_1_4_D00002_1_0.pdf (333.2 KB)

@Chris2Stein

Hello,

Thank you for providing the sample files: Strahlendzeiten2026_D03742_1_4.xlsx, PDF.png, Excelpng.png, and Strahlendzeiten2026_D03742_1_4_D00002_1_0.pdf.

We have successfully reproduced the issue using Aspose version 26.4. Our initial investigation confirms that the chart legends are not rendering correctly during the conversion process. Specifically, we observed overlapping and corrupted text in the “Januar” chart, while the charts for “April” through “Oktober” incorrectly display “(Leer)” instead of the expected series names. Furthermore, the “November” and “Dezember” charts are incorrectly showing “Gesamtergebnis” in the legend.

It appears there is a regression or a failure in resolving the series names from the source Excel data when rendering to PDF and image formats. We are currently analyzing the internal rendering engine to identify the root cause of these discrepancies.

We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.

Issue ID(s): CELLSNET-60197

You can obtain Paid Support Services if you need support on a priority basis, along with the direct access to our Paid Support management team.