Merge PDF Files
Combine several PDFs into a single document, in whatever order you choose. The merge happens inside your browser, so contracts, statements and scans are never uploaded to anyone’s server.
100% private — this tool runs in your browser. Your file is never uploaded to any server.
How it works
Merging is the one PDF operation that loses nothing. Pages are copied across intact — same text, same images, same fonts, same resolution — so a merged file is as good as its sources. Nothing is re-encoded or flattened, which is why this produces the same result a desktop application would.
Step by step
Add your PDFs
Drop two or more PDF files, or tap to choose them.
Put them in order
Use the arrows to move any file up or down.
Merge
Press Merge PDFs. The work happens on your device.
Download
Save the combined PDF. Your originals are untouched.
Frequently asked questions
How do I merge PDF files without uploading them?
Use the tool at the top of this page. It opens each PDF with JavaScript inside your own browser tab, copies the pages into a new document, and hands it back as a download. No file is transmitted.
Can I change the order of the PDFs before merging?
Yes. Once your files are listed, the up and down arrows move any file. The merged document follows the list from top to bottom.
Does merging reduce the quality of my PDFs?
No. Pages are copied across whole — text stays selectable, images keep their original resolution, and fonts are preserved. Merging is lossless.
How many PDFs can I merge at once?
There is no fixed limit. The practical ceiling is your device memory: dozens of ordinary documents merge without trouble.
Can I merge password-protected PDFs?
Not directly — an encrypted PDF cannot be read without its password. Open it in a PDF reader, remove the password, save a copy, then merge that copy.
Will the merged PDF have a watermark?
No. There is no watermark, no page limit and no sign-up. The output contains only your pages.
Does this work on iPhone and Android?
Yes. The tool runs in mobile Safari and Chrome exactly as on desktop — tap the drop area to pick files from Files, Drive or Photos.
Is there a file size limit?
No limit is imposed by us. Because everything is processed in memory on your device, very large files may make a browser tab struggle.