We noticed the issue as you mentioned. The setPrintGridlines() does not take effect in the rendered images from worksheet(s) using Sheet to Image feature. I have reopened the issue “CELLSJAVA-40014” again. I have also linked your existing issue to this thread. We will look into it to figure it out soon.
I am afraid, your issue issue is not resolved yet. I have logged your concerns against your issue “CELLSJAVA-40014” into our database. I have asked the concerned developer to update on it or share an eta for it (is possible).
Once we have any update on it, we will let you know here.
Good to know that your presented issue got resolved with latest build of Aspose.Cells for Java. We may now close the ticket CELLSJAVA-40014 attached to this thread. Please feel free to write back in case you have questions or need our assistance.