PDF Merge & Split
Merge PDFs, reorder, rotate or delete pages and split a PDF by page ranges — free, in your browser, nothing uploaded.
Drop PDF files here or click to select
Add one or more PDF files up to 50 MB each to merge, reorder, rotate or split
or paste an image (⌘V / Ctrl+V)
Drop PDF files above to reorder, rotate, merge or split pages.
100% client-side & private
Your PDFs are processed in your browser. No files are uploaded to any server or stored anywhere.
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Frequently asked questions
- Are my PDF files uploaded to a server?
- No. Merging, reordering, rotating and splitting all run in your browser with the pdf-lib library. Your PDFs stay on your device and are never uploaded or stored.
- Can I open password-protected PDFs?
- No. Encrypted or password-protected PDFs are refused with an error message while any other files you selected still load. Remove the password in your PDF reader first, then add the unlocked file.
- Does merging or splitting reduce PDF quality?
- No. Pages are copied directly from the original PDF without being rasterised or re-compressed, so vector graphics stay crisp, text remains selectable and searchable, and page sizes are preserved.
- How do I write page ranges when splitting a PDF?
- Separate ranges with commas or semicolons, for example 1-3, 5, 8-. Each part produces one output PDF: 1-3 keeps pages 1 to 3, 5 keeps page 5, 8- keeps from page 8 to the end, and -3 keeps pages 1 to 3. A single range downloads directly as a PDF; two or more ranges (or One file per page) download together in one ZIP archive.
- What is the file size limit?
- Each PDF file can be up to 50 MB, and you can add multiple PDFs at once. Because everything is held in browser memory on your device, very large documents or hundreds of pages depend on your device's available RAM.