书签标记最后浏览位置

在第一个可见页面添加书签以保存当前阅读位置，并替换该页面的已有书签。

(function () {
    let doc = Api.GetDocument();
    let visiblePages = doc.GetCurrentVisiblePages();

    if (!visiblePages || visiblePages.length === 0) {
        console.log("No visible pages found.");
        return;
    }

    let targetPageIndex = visiblePages[0];
    doc.GoToPage(targetPageIndex);
    let targetParagraph = doc.GetCurrentParagraph();

    if (!targetParagraph) {
        console.log("Could not get paragraph on page index: " + targetPageIndex);
        return;
    }
    let bookmarkName = "CurrentBookmarkForPage" + (targetPageIndex + 1);
    let existingBookmarks = doc.GetAllBookmarksNames();
    if (existingBookmarks && existingBookmarks.indexOf(bookmarkName) !== -1) {
        doc.DeleteBookmark(bookmarkName);
        console.log("Removed existing bookmark: " + bookmarkName);
    }
    let range = targetParagraph.GetRange();
    range.AddBookmark(bookmarkName);
})();

使用方法：获取文档，获取当前可见页面，跳转至指定页面，获取当前段落，获取所有书签名称，删除书签，获取范围，添加书签

结果