Install-Package Spire.Doc

using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;

// 刪除空白段落
for (int i = section.Paragraphs.Count - 1; i >= 0; i--)
{
    Paragraph para = section.Paragraphs[i];
    if (string.IsNullOrWhiteSpace(para.Text) && para.ChildObjects.Count == 0)
    {
        section.Paragraphs.Remove(para);
    }
}

// 刪除空表格
for (int t = section.Tables.Count - 1; t >= 0; t--)
{
    Table table = section.Tables[t] as Table;
    bool isEmpty = true;

    foreach (TableRow row in table.Rows)
    {
        foreach (TableCell cell in row.Cells)
        {
            if (!string.IsNullOrWhiteSpace(cell.Paragraphs[0].Text))
            {
                isEmpty = false;
                break;
            }
        }
        if (!isEmpty) break;
    }

    if (isEmpty)
    {
        section.Tables.Remove(table);
    }
}

// 刪除空白 Section（空白頁）
if (section.Paragraphs.Count == 0 && section.Tables.Count == 0)
{
    document.Sections.Remove(section);
}

using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;

namespace RemoveEmptyContent
{
    class Program
    {
        static void Main(string[] args)
        {
            // 加載 Word 文檔
            Document document = new Document();
            document.LoadFromFile("Sample.docx");

            // 遍歷所有節(jié)
            for (int s = document.Sections.Count - 1; s >= 0; s--)
            {
                Section section = document.Sections[s];

                // 刪除空白行
                for (int i = section.Paragraphs.Count - 1; i >= 0; i--)
                {
                    Paragraph para = section.Paragraphs[i];
                    if (string.IsNullOrWhiteSpace(para.Text) && para.ChildObjects.Count == 0)
                    {
                        section.Paragraphs.Remove(para);
                    }
                }

                // 刪除空表格
                for (int t = section.Tables.Count - 1; t >= 0; t--)
                {
                    Table table = section.Tables[t] as Table;
                    bool isEmpty = true;

                    foreach (TableRow row in table.Rows)
                    {
                        foreach (TableCell cell in row.Cells)
                        {
                            if (!string.IsNullOrWhiteSpace(cell.Paragraphs[0].Text))
                            {
                                isEmpty = false;
                                break;
                            }
                        }
                        if (!isEmpty) break;
                    }

                    if (isEmpty)
                    {
                        section.Tables.Remove(table);
                    }
                }

                // 刪除空白頁
                if (section.Paragraphs.Count == 0 && section.Tables.Count == 0)
                {
                    document.Sections.Remove(section);
                }
            }

            // 保存結果
            document.SaveToFile("Cleaned.docx", FileFormat.Docx);
        }
    }
}