Split PDF by Bookmark

Break a PDF into one file per top-level bookmarked section.

Select a PDF

Click to choose, or drop a file here

Related PDF tools

Split PDFBreak a PDF into separate files by page range, or into equal chunks.Split PDF by File SizeBreak a PDF into chunks that each stay under a size you set — for email or upload limits.Add PDF BookmarksBuild a clickable outline (the Bookmarks panel) so readers can jump straight to any section.Extract pagesPull selected pages into a new PDF.

Split PDF by Bookmark — frequently asked questions

My PDF has no bookmarks — what happens?+

The tool tells you and you should use Split PDF with page ranges instead.

What about nested bookmarks?+

Only the top-level bookmarks are used as split points.

你们会把我的文件上传到服务器吗？+

不会——这里的每个工具都完全在你的设备上处理文件，不会向服务器上传任何内容。唯一的例外是 AI 工具，它们会把提取的文本（而非文件本身）发送给 Claude 来完成工作。

有文件大小限制吗？+

我们没有人为设置限制，但由于处理过程在你的浏览器中进行，非常大的文件（超过 500MB 或 1000 页）会受到你设备内存的限制，而非我们的限制。