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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.
你們會把我的檔案上傳到伺服器嗎？+
不會——這裡的每個工具都完全在你的裝置上處理檔案，不會向伺服器上傳任何內容。唯一的例外是 AI 工具，它們會把擷取的文字（而非檔案本身）傳送給 Claude 來完成工作。
有檔案大小限制嗎？+
我們沒有人為設下限制，但由於處理過程在你的瀏覽器中進行，非常大的檔案（超過 500MB 或 1000 頁）會受你裝置記憶體的限制，而非我們的限制。
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