Upload multiple PDF files, drag to reorder them, and merge into a single document. The tool shows page counts and file sizes for each PDF. All processing happens locally in your browser โ your files are never uploaded to a server.
Merge PDFs
Combine multiple PDF files into one
Combine PDFs without uploading them anywhere
Most online PDF mergers upload your files to their servers to do the work โ which is a problem when the documents are contracts, bank statements, medical records, or anything you'd rather not hand to a third party. This tool does the merge entirely in your browser. Nothing is uploaded, nothing is stored, and the files never leave your device.
It copies each page across exactly as it is, so text stays selectable and images keep their resolution โ no quality loss, no re-compression.
How to use it
- Add two or more PDFs (file picker or drag-and-drop).
- Drag the cards to set the page order for the combined file.
- Click Merge, then download the single combined PDF.
Related PDF tools
- Need only some pages first? Extract PDF pages into a new file, then merge.
- Pages facing the wrong way? Rotate PDF pages before combining.
- Turning images into a PDF to merge? Use Images to PDF.
Frequently asked questions
Are my PDF files uploaded to a server?
No. The merge happens entirely in your browser using JavaScript โ your files never leave your device and are never uploaded, stored, or seen by us. That makes it safe for confidential documents like contracts, statements, and IDs.
How do I change the order of the merged PDFs?
Drag the file cards into the order you want before merging. The final document combines them top to bottom, so arrange them exactly as they should appear in the output.
Is there a limit on file size or number of files?
There is no hard limit, but because merging runs in your browser it is bounded by your device memory. Combining a few dozen typical PDFs is no problem; very large scanned files (hundreds of MB) may be slow on low-memory devices.
Will merging reduce the quality of my PDFs?
No. Merging copies each page as-is into the new document, so text stays selectable and images keep their original resolution. It does not re-compress or rasterize anything.
Can I merge password-protected PDFs?
You need to remove the password first. Encrypted PDFs can't be read for merging until they're unlocked. Open the file in a PDF viewer, remove the protection, then merge the unlocked copy.
Related Tools
Get weekly dev tools and tips