Drop PDFs here to merge
Bulk uploads supported. Files are processed entirely in your browser — nothing is sent to a server.
What this PDF merge tool does and who it is for
This tool combines any number of PDF files into a single document entirely inside your web browser. Drop the files in, drag the page thumbnails into the order you want, rotate any page that came out of the scanner sideways, remove the pages you do not need, and download the merged result. There is no queue, no watermark, and no account to create.
The important difference from most free PDF sites is where the work happens. Conventional online mergers upload your document to a server, process it there, and ask you to trust their retention policy. This tool never makes that request: the file is read into memory by your own browser, rewritten locally, and handed straight back to you. Close the tab and nothing remains anywhere.
That matters most for the people who merge PDFs at work — finance teams assembling invoice packs and supporting receipts, HR staff combining signed contracts with identity documents, property agents bundling floor plans with option-to-purchase paperwork, and clinics attaching referral letters to medical certificates. All of those documents carry personal or commercial data that should not be posted to an unknown third-party server just to staple two files together.
Because the processing is local, the practical limits are your device's memory rather than an arbitrary free-tier cap, and large scanned files are usually faster than uploading them would have been.
Privacy first: this tool runs entirely in your browser. Nothing leaves your device, nothing is uploaded, and there is no account to create.
Frequently asked questions
Is it safe to merge PDFs online?
- It depends entirely on whether the site uploads your file. Most do, which means your document sits on someone else's server for at least as long as their retention policy states. This tool does not upload anything — the merge runs in your browser using local JavaScript, so the document never leaves your device and there is nothing for us to store or leak.
Is there a file size limit?
- There is no limit imposed by us because there is no upload. The practical ceiling is your device's available memory. Large scanned documents of several hundred megabytes generally work on a modern laptop; on an older phone, very large files may be slow to render page previews.
Can I reorder or rotate pages before merging?
- Yes. Every page from every file you add appears as a draggable thumbnail. Drag to reorder across documents, rotate pages in 90-degree steps, and delete anything you do not want in the final PDF before downloading.
Do I need to sign up or install anything?
- No. There is no account, no email capture and no installation. Open the page, add your files and download the result. It works the same way on mobile browsers as on desktop.
Does merging reduce the quality of my PDF?
- No. Pages are copied into the new document rather than re-rendered as images, so text stays selectable and image quality is unchanged. The merged file is a normal PDF that any reader can open.
Merging the same document pack every week?
If assembling invoice packs, contracts or claim submissions is a recurring manual chore, it can be generated automatically instead. We build document workflows that produce, merge and file the finished PDF the moment the underlying record is approved.