Merge PDF
Combining PDF files usually means emailing your documents to a conversion server and hoping they are deleted afterwards.
How to use
- Add two or more PDF files by clicking the upload area or dropping them in.
- Arrange the files with the up and down buttons until the order matches how you want the pages combined.
- Click "Merge PDFs" and download the single combined document.
Frequently asked questions
Are my files uploaded to a server when merging?
No. The entire merge runs locally in your browser using WebAssembly-free JavaScript. Your files are read from disk, combined in memory and handed straight back to you as a download — nothing is uploaded, stored or logged.
Is there a file size or page limit?
There is no artificial limit. The only ceiling is your device memory, because the files are processed locally. For typical reports, invoices and scans this means even hundreds of pages merge in seconds.
Will merging reduce the quality of my pages?
No. Pages are copied from the original documents without re-compression, so text stays sharp and images keep their original resolution and colors.
How do I change the order of the merged pages?
Use the up and down arrow buttons next to each file before merging. The pages are combined strictly from the top of the list to the bottom.
Can I merge password-protected PDFs?
Not currently. Encrypted files are rejected with a clear error instead of failing silently — unlock them first, then merge.
Related tools
About this tool
Combining PDF files usually means emailing your documents to a conversion server and hoping they are deleted afterwards. This merge tool works differently: everything runs inside your own browser, so your contracts, reports, statements and scans never leave your device. Add two or more PDF files, arrange them in exactly the order you want with the move buttons, and click merge to get a single combined document in seconds. The tool preserves page quality because page content is carried over from the original files without re-encoding — no re-compression, no watermarks, no page limits beyond what your device memory can handle. It is built for students assembling coursework, accountants bundling invoices, lawyers merging case files, and anyone who received "please send it as one PDF" one time too many. Because there is no upload step, even large or confidential files are processed at local speed, and nothing is stored, logged or transmitted anywhere. When you close the tab, your files are gone for good.