Merge PDF Files
Combine multiple PDFs into one document. Drag to reorder pages, remove what you don't need, then download — all in your browser.
Drop your PDFs here
Drag & drop or click to browse. Select multiple files at once — all pages will appear in the grid below.
Choose PDF FilesFree PDF Merger — Combine PDFs in Your Browser
Combine any number of PDF files into a single, perfectly ordered document — without uploading anything to a server. Upload your files, drag pages into the exact sequence you want, remove anything you don't need, and download the merged result in seconds.
🔀 Reorder Pages
Drag and drop individual page thumbnails into any order before merging.
🗑️ Remove Pages
Hover any thumbnail and click the × button to exclude that page from the final PDF.
➕ Add More Files
After the first upload, use "Add more PDFs" to append pages from additional files.
🔒 Private & Secure
All processing happens locally in your browser. Your files never leave your device.
How to Merge PDF Files
- Click Choose PDF Files or drag PDFs onto the upload zone. You can select multiple files at once.
- All pages from all uploaded PDFs appear as thumbnails in the grid below.
- Drag thumbnails to reorder pages. Hover any page and click × to remove it.
- Use Add more PDFs to append pages from additional files at any time.
- Click Merge & Download PDF to combine all visible pages and download the result.
Frequently Asked Questions
Yes — completely free, with no limits on file count, page count, or file size.
No. Everything runs client-side using PDF.js and pdf-lib. Your files never leave your device.
There is no hard limit. You can merge as many files as your device memory allows.
Yes — pages from all files appear in the same grid and can be freely dragged into any order.
Standard PDFs work fine. Password-protected PDFs will fail to load — you'll need to unlock them first.
No. pdf-lib copies pages at full fidelity — the output PDF is identical in quality to the originals.