Split a PDF under ChatGPT's upload limit
Chat assistants cap uploads (512 MB, 100 MB, 20 MB — pick your poison). A 400-page manual or a year of statements will not go through as one file, and page-range splitting by hand takes forever.
Drop your file here — or click to choose
PDF document · up to 500MB each · processing starts instantly, preview is free
MB
按页累计切分（每页大小按文件总量比例估算）
No signup needed. Only pay if you want the clean file.
Frequently asked questions
How is page size estimated?
Proportionally: the file size divided by the page count. Image-heavy pages make real volumes smaller than the estimate, never larger than one page over.
A single page bigger than the limit?
It becomes its own (oversized) volume — splitting a single page is impossible without rasterising.
When this tool is not the right choice
You need one PDF per page.
Use the split-to-single-pages tool.
Use the split-to-single-pages tool.