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Split PDF by File Size
Break a PDF into chunks that each stay under a size you set — for email or upload limits.
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 BookmarkBreak a PDF into one file per top-level bookmarked section.Compress PDFShrink file size by re-encoding page images.Compress to Target SizeShrink a PDF down until it fits under a size you choose — for email or upload limits.
Split PDF by File Size — frequently asked questions
Does it compress the pages?+
No — it only groups pages. To make the file itself smaller, use Compress PDF or Compress to Target Size first.
What if one page is bigger than the limit?+
That page becomes its own file, and the tool notes it couldn't get under the limit for that one.
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。
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