Extra cell width is added to AUTO_FIT_TO_CONTENTS table cells with vertical text orientation in PDF export.
Code snippet:
Document document = new Document();
DocumentBuilder builder = new DocumentBuilder(document);
builder.insertCell();
builder.write("blabla");
builder.getCellFormat().setOrientation(TextOrientation.DOWNWARD);
builder.getRowFormat().setHeight(30);
builder.endRow();
builder.endTable();
Table table = (Table) document.getChild(com.aspose.words.NodeType.TABLE, 0, true);
table.autoFit(AutoFitBehavior.AUTO_FIT_TO_CONTENTS);
PDF export:

DOCX export:

Aspose.WORDS version: 24.9
@dfinsolutions
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): WORDSNET-27994
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.
Hello, this issue shows as postponed. Any updates on when this may be prioritized?
@dfinsolutions The issue occurs because table column widths are not calculated correctly for an auto-fit table with vertical text inside. The issue has been postponed and is not scheduled for development yet. Please accept our apologies for your inconvenience.