Merge PDF
Combine multiple PDF files into one. No upload, no signup, no watermark.
Processed in your browser — verify in DevTools Network tab
Drop files here
or click to choose
How it works
- Drop one or more PDF files into the box above.
- Drag to reorder them — top becomes the first page of the merged PDF.
- Click Merge PDFs and download the result.
FAQ
Is my PDF uploaded anywhere?
No. Merging runs entirely in your browser. You can verify in DevTools Network tab — zero outbound requests while merging.
Is there a file size limit?
No hard limit. Practical ceiling is your device's available memory. Very large PDFs may slow down on mobile.
How many PDFs can I merge?
As many as fit in memory. We've tested up to 50 files at a time without issues on desktop.
Are there watermarks?
No. Output is the unmodified concatenation of your input PDFs.