Combining several PDF documents into one should not require installing software or creating an account. Our free Merge PDF tool runs entirely in your browser: select the files you want to join, arrange them in the order you need, and download a single, clean PDF. Because the work happens on your device, your documents are never uploaded to any server — a real advantage when you are handling invoices, contracts, or client reports.
Freelancers use it to assemble proposal packs, students merge lecture notes into one study file, and office teams stitch scanned pages into a single archive. There is no signup, no watermark, and no limit on how often you use it. The merged file keeps the original page sizes, so mixed sources (A4 scans, US Letter exports) join without distortion.
The tool works with any standard PDF, including files exported from Word, Google Docs, Canva, or scanned with a phone app. Just drag your files into the box above, use the up and down buttons to set the order, and click “Merge PDFs”.
Merge PDF
Combine multiple PDF files into one PDF, in your chosen order.
Drop your file(s) here or click to browse
Your files never leave this browser — everything is processed locally on your device.
How to merge PDFs
- Drag and drop your PDF files into the box (or click to browse).
- Use the up/down arrows next to each file to arrange them in the order you want.
- Remove any file you added by mistake.
- Click “Merge PDFs” and wait a moment while your files are joined.
- Download the merged PDF from the result box.
FAQs
Is there a limit on the number of PDFs I can merge?
There is no artificial limit — you can merge as many files as your browser can comfortably hold in memory. Very large batches (hundreds of pages) may take a minute to process.
Will the merged PDF keep the original page sizes?
Yes. Each page keeps the size and orientation of its source file, so a mix of A4 and Letter pages merges without shrinking or cropping.
Are my documents uploaded to a server?
No. The merging happens with JavaScript inside your browser. Your files never leave your computer, so this tool is safe for sensitive documents.