Merge PDF
Merge multiple PDF files into a single document. Simply upload your PDFs, arrange them in the desired order, and download the merged result. All processing happens locally in your browser — your files never leave your device.
Preparing the local PDF workspace
The instructions, FAQ, privacy notes, and related tools are already available while the browser-only editor initializes.
Practical guide for Merge PDF
Example use case
Combine a signed contract, invoice, and appendix into one PDF before sending it to a client or uploading it to a portal.
Settings explained
- File order controls the page order in the final merged PDF.
- Page orientation and page size are preserved from each source file.
- Encrypted PDFs may need to be unlocked before they can be merged.
Limitations
- Very large PDF sets depend on available browser memory.
- Files with advanced forms or signatures may lose interactive behavior after merging.
- Password-protected files must be unlocked before local processing can read them.
Troubleshooting
- If pages appear in the wrong order, reorder files before merging again.
- If a file fails, try unlocking or repairing that PDF first.
- If the browser slows down, merge fewer large files at a time.
How It Works
Upload PDFs
Select two or more PDF files from your device.
Arrange order
Drag files into the exact order you want them to appear in the final document.
Merge locally
Combine the files in your browser and download the merged PDF.
Frequently Asked Questions
Can I merge PDFs without uploading them?
Yes. The merge workflow runs in your browser for supported PDF files.
Will bookmarks or forms be preserved?
Basic pages are preserved. Advanced bookmarks, forms, or signatures may not behave the same after merging.
Is this tool free to use?
Yes, this tool is 100% free to use. No sign-up, no limits, and no hidden fees. All processing happens locally in your browser — nothing is ever uploaded.
Is my file safe?
Your files never leave your device. All processing is done locally in your browser using client-side JavaScript. Your files are never uploaded to any server, so your privacy is completely protected.
Do I need to create an account?
No sign-up required. You can use this tool immediately without creating an account or providing any personal information.