PDFalo
Merge PDF files
Combine several PDFs into one. Everything runs in your browser, so your files are never uploaded.
- 100% private
- Free forever
- No sign-up
Drop PDF files here
or
Your files
Drag to reorder. The first file comes first in the merged PDF.
Your merged PDF is ready
Download merged.pdfHow to merge PDF files
- Select or drop two or more PDF files.
- Drag the files into the order you want.
- Click Merge PDFs, then download the result.
Why use this tool
- Private: files are processed on your device and never leave it. We never store your files on any server. Just works done and removed from memory.
- Free: no sign-up, no watermark, no file limit.
- Works everywhere: phone, tablet, or computer, in any modern browser.
Frequently asked questions
Is it safe to merge confidential PDFs here?
Yes. The merge happens inside your browser, so your documents are not sent to any server.
Is there a limit on file size?
There is no fixed limit, but very large files depend on your device's memory.
Can I merge password-protected PDFs?
No. Remove the password first, then merge the files.