Free · no signup · nothing uploaded
Merge PDF
Combine several PDFs into one file — add them in the order you want, keep every page, and download. It all runs in your browser, so your documents never leave your device.
Choose PDFs to merge
or drop your file here.
Add two or more PDF files, in the order you want them joined
Runs in your browser — your file is never uploaded.
Short answer
To merge PDFs, add two or more files below in the order you want them joined — every page is kept at full quality and combined into a single PDF you can download. It's free, has no watermark, and runs entirely on your device.
Merge PDF guides
How to merge PDF files
- 1Open the tool. Open the Merge PDF tool — no signup or install.
- 2Add your PDFs. Drag in or select the PDF files you want to combine. They'll be joined in the order you add them.
- 3Merge. The combined PDF is built in your browser instantly — nothing is uploaded.
- 4Download. Download the single merged PDF to your device.
What survives a merge
| PDF feature | After this tool runs | Why |
|---|---|---|
| Page content & fonts | Preserved exactly | Pages are copied whole, never re-rendered |
| Page order | The order you set | Reorder files before merging |
| Mixed page sizes | Kept per page | An A4 and a Letter page can sit in one file |
| Form fields | Flattened | Two documents can hold same-named fields, which would collide |
| Bookmarks / outline | Not carried over | Outlines point at the source document's page tree |
| Links & annotations | Internal links may break | They reference pages by index in the original file |
| Password-protected files | Cannot be merged | The content is encrypted and cannot be read |
Merging copies pages rather than re-rendering them, so text stays selectable and image quality is untouched — the file size is roughly the sum of the inputs.
Frequently asked questions
Are my PDFs uploaded when I merge them?+
No. This tool merges your PDFs entirely in your browser using JavaScript — the files are read and combined on your own device and never sent to a server. That makes it safe for confidential documents and it keeps working even offline once the page has loaded.
How do I combine PDF files in order?+
Add the PDFs in the sequence you want them joined — they're merged top to bottom in that order, with every page preserved. Add them one batch at a time if you need precise control over ordering.
Is there a limit on how many PDFs I can merge?+
There's no fixed limit — it depends on your device's memory. Because the merge happens locally, dozens of ordinary documents combine quickly without an upload wait.
Will merging change the quality or layout of my PDFs?+
No. Pages are copied as-is into the combined file, so text stays selectable, images keep their resolution, and each page keeps its original size and orientation.
Is it free and watermark-free?+
Yes — no signup, no email, no watermark, and no per-file limit. The tool is ad-supported, and since it runs in your browser there's no per-merge server cost to gate.
Related tools
Your PDFs are combined entirely in your browser and are never uploaded to a server. Provided free and ad-supported, without warranty; check the merged file before relying on it.