PDF tool
Merge PDF
Merge two or more PDFs into a single file. Add documents, reorder them, and download the combined PDF — everything stays in your browser.
Private by design. Nothing is uploaded. PDFs are merged locally on your device.
How it works
- Select two or more PDF files.
- Reorder with up/down if needed.
- Click Merge and download the combined PDF.
Frequently asked questions
Is this merge PDF tool free?
Yes. Merge PDF online free with no account and no watermark on the merged file.
How many PDFs can I combine?
As many as your device can handle in memory. For very large packs, merge in smaller batches.
Do you upload my PDFs?
No. Merging uses pdf-lib in your browser. Files never leave your device.
Can I change the order before merging?
Yes. Use the up and down controls on each file, then merge.
Will bookmarks and forms be kept?
Page content is copied into a new PDF. Advanced interactive features may not fully carry over — check the output if you rely on forms.