Merge PDF
Combine multiple PDF files into one. Drag and drop or click to upload.
Upload PDF Files
Drop PDFs here or click to upload
Multiple files supported
Files to Merge
Upload at least 2 PDF files to begin
How to Merge PDF Files
- Upload two or more PDF files using the drop zone or file picker.
- Reorder files using the ↑ / ↓ arrows, or remove unwanted files.
- Check the total page count in the stats panel.
- Click Merge PDFs to combine them into a single file.
- The merged PDF downloads automatically as
merged.pdf.
About This PDF Merger
This tool merges PDF files entirely in your browser using pdf-lib. No files are uploaded to any server — your documents stay private on your device. It supports PDFs of any size and preserves all pages, formatting, and embedded fonts.
FAQ
Are my PDFs uploaded to a server?
No. Everything runs in your browser. Your files never leave your device.
Is there a limit on the number of files?
There is no hard limit. You can merge as many PDFs as your browser memory allows.
Does it support password-protected PDFs?
Password-protected PDFs cannot be read without the password. Remove the password first before merging.
Will the page order be preserved?
Yes. Pages are merged in the order the files appear in the list. Use the arrows to reorder files before merging.
What happens to bookmarks and hyperlinks?
Page content and formatting are preserved. Some metadata features like named bookmarks may not be carried over.