Merge PDF
Your files are processed locally in your browser — nothing is uploaded.
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Add two or more PDF files to enable the merge button.
Merge PDF combines several PDF files into a single document in exactly the order you choose, with simple controls to reorder or remove files before merging. All processing happens locally in your browser — your files are never uploaded to any server.
How to use
- Click the file picker and add two or more PDF files; a preview of the first page and the page count appear next to each file.
- Reorder the files with the Up and Down buttons, or remove any you do not need.
- Press Merge and wait for the processing to finish.
- The combined file downloads automatically as merged.pdf.
Frequently asked questions
Are my files uploaded anywhere?
No. Every step of the merge runs inside your browser on your own device; no part of your files ever leaves your computer.
Can I merge password-protected PDFs?
No. Protected files cannot be read, so they are flagged with an error and excluded from the merge. Remove the password first, then add the file again.
Is there a limit on file count or size?
There is no fixed limit, but performance depends on your device memory; merging very large files may take longer on weaker hardware.
Does merging reduce quality?
No. Pages are copied as-is with no recompression or conversion, so quality and searchable text remain exactly as in the original files.