Please share your sample Excel file, code snippet and output PDF file with us for our testing. We will reproduce the problem and provide our feedback after analysis.
We were able to observe the issue but we need to look into it more. We have logged the issue in our database for investigation and for a fix. Once, we will have some news for you, we will update you in this topic.
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CELLSJAVA-42763 - Export PDF is cutting text horizontally
Please check attached file “TEST_By_Microft Excel 2016.pdf” saved by Microsoft Excel 2016, you will find the text is also cut between page 2 and page 3. It is because that page breaks are in merged cell area (e.g. merged cell A9), text line in the merged cell will have the choice being at the page break, so the text line will be cut between pages. TEST_By_Microft Excel 2016.pdf (201.5 KB)
A workaround is splitting the large merged cell area to several areas to let pages breaks outside the merged cell instead of in the merged cell.
See the document with example code for your reference: