Merge PDF
Combine multiple PDF files into one document. All processing is done locally in your browser — nothing is ever uploaded.
Drop PDFs here or click to browse
Select two or more PDF files to combine into one
How it works & FAQ
Why this is secure?
Your PDF files never leave your device. All merging happens directly inside your browser using JavaScript — no uploads, no servers, no data leaks of any kind.
Step-by-Step Guide
- 1Click 'Add PDF Files' or drag and drop your PDFs into the upload area below.
- 2Reorder files using the ↑ ↓ arrows so pages appear in the sequence you want.
- 3Click 'Merge & Download' — your combined PDF saves instantly to your device.
Common Questions
How many PDF files can I merge at once?
There is no strict limit. You can merge 2 to 50+ PDFs depending on your device memory. For smooth performance, keep the total file size under 200 MB.
Will merging reduce image or text quality?
No. The merge operation copies every page at its original resolution. Text stays selectable, images stay sharp, and all formatting is preserved exactly as in the source files.
Can I merge password-protected PDFs?
Password-protected PDFs cannot be read by this tool. Remove the password using a PDF unlock tool first, then come back here to merge.
What order will the pages appear in?
Pages appear in the order your files are listed — File 1 pages come first, then File 2, and so on. Use the arrows next to each file to change the order before merging.
Are my files safe and private?
Yes. Everything runs locally in your browser. Your files are never transmitted to any server. Once you close the page, no data is retained anywhere.
All processes run inside sandboxed browser memory. No file content, metadata, or usage information is ever sent over any network connection.