How many PDFs can I merge at once?

Up to 20 PDFs can be merged in a single operation. Total combined size should be under 200MB for best performance.

Can I reorder pages from different PDFs when merging?

Yes. After uploading, you get a page-level thumbnail view where you can drag individual pages from any document into any order.

No limit. You can split a 200-page document into 200 individual one-page PDFs if needed.

After merging, run it through the AI PDF Compressor tool (linked below) to reduce the file size.

Yes. In split mode, simply exclude the page numbers you don't want — only selected page ranges will appear in the output.

PDF & Document Free AI

Organize, merge, and split PDFs for exam document submissions

Drop PDFs here (up to 20)

PDF only · Max 50 MB each

Upload your PDFs
For merging, upload multiple PDFs by clicking or dragging them in. For splitting, upload a single PDF. Files up to 50MB each.
Arrange or define split points
For merge — drag to reorder files. For split — drag page thumbnails or enter page ranges (e.g., "1-3, 4-7").
Process your PDFs
Click "Merge" or "Split". Processing happens locally in your browser using PDF.js — no file is sent to any server.
Download result
Download the merged PDF or individual split files as a ZIP archive.

: Up to 20 PDFs can be merged in a single operation. Total combined size should be under 200MB for best performance.
: Yes. After uploading, you get a page-level thumbnail view where you can drag individual pages from any document into any order.
: No limit. You can split a 200-page document into 200 individual one-page PDFs if needed.
: After merging, run it through the AI PDF Compressor tool (linked below) to reduce the file size.
: Yes. In split mode, simply exclude the page numbers you don't want — only selected page ranges will appear in the output.

pdfmergesplitorganizedocumentcombine