Merge PDF
Drop your PDFs below, drag them into the order you want, and download the merged file. Everything runs in your browser — no upload, no page limit, no watermark.
Drop PDF files here or click to browse
Merged on your device — never uploaded
Merging is the most common reason people hand confidential documents to free websites. The typical merger uploads your files, processes them on a server, and promises deletion within an hour — a promise you have no way to verify. This one copies pages between documents using pdf-lib in your own tab. Your files never cross the network, there is no size cap beyond your device's memory, and the merge is lossless because pages are copied rather than re-encoded.
Features
- Merge any number of PDFs into one document
- Drag to reorder files, with page-count shown for each
- Thumbnail preview of the first page of every file
- No watermark, no page limit, no signup
- Lossless — pages are copied, never re-encoded
- Nothing uploaded: safe for contracts, statements and ID scans
How to use the Merge PDF
- Drop your PDF files, or click to browse.
- Drag the files into the order you want them combined.
- Check the total page count.
- Click merge and download.
Why use this tool
Because the alternative is uploading your signed agreements to a service whose business model you do not know — and because a 200-page merge finishes here before an upload would have started.
Frequently asked questions
Are my PDFs uploaded to a server?
No. The file is read with FileReader, processed by pdf-lib inside your browser tab, and written back out as a download. There are no network requests. You can verify this yourself: open your browser's developer tools, go to the Network tab, and run the tool — you will see the library load once from a CDN and nothing else. This matters because the documents people organise are bank statements, ID scans and signed contracts.
Will this reduce the quality of my PDF?
No. Pages are copied wholesale from the source document into the new one — the content streams are not decoded or re-encoded. Text stays selectable, images stay at their original resolution, and vector graphics stay vector. What goes in comes out identical.
Is there a file size or page limit?
None imposed. The practical ceiling is your device's memory, since everything is held in the browser. A few hundred pages is comfortable on any modern machine. Very large scanned documents — hundreds of megabytes — may struggle on a low-memory phone, which is the honest trade-off for not uploading.
Can I use a password-protected PDF?
Not directly — encrypted content streams cannot be copied without the key. Remove the password first using the Remove PDF Password tool, then run this one. That tool also runs entirely in your browser, so the password never leaves your machine either.
Does the merged PDF keep bookmarks and form fields?
Page content, text, images and vector graphics are preserved exactly. Document-level features — bookmarks, form fields, annotations, attachments — live in structures outside the page tree and may not survive the copy. For a straightforward document merge this rarely matters; if you are merging interactive forms, check the result before relying on it.