Merge PDF Files Online
PDF Tool
Combine multiple PDF files into one document. Drag to reorder pages. No upload, no server. Everything runs in your browser using pdf-lib.
Coming Soon— This tool is being built. All processing will be 100% client-side.
No uploads
Files never leave your device
Instant
Runs in your browser
Private
Your files stay on your device
How to Use PDF Merge
- 1
Upload PDF files
Click or drag and drop multiple PDF files. No limit on number of files.
- 2
Reorder pages
Drag and drop to arrange PDFs in your preferred order. Preview pages before merging.
- 3
Download merged PDF
Click merge and download the combined PDF. Bookmarks and links preserved.
Why Use Our PDF Merge?
100% free, no limits
Files never leave your device
Drag and drop to reorder
Combine unlimited PDFs
Preserves bookmarks and links
No file size limit (browser memory only)
Works offline after first visit
No account required
Frequently Asked Questions
Are my PDFs uploaded to a server?▼
No. All merging happens in your browser using pdf-lib (MIT licensed). Files never leave your device.
Is there a file size limit?▼
No hard limit. Processing depends on your device memory. Most devices handle 100MB+ easily.
Are bookmarks and links preserved?▼
Yes. Internal links, bookmarks, and form fields are preserved in the merged output.
Can I merge password-protected PDFs?▼
You'll need to enter the password first. Once unlocked, the PDF can be merged normally.
How many PDFs can I merge?▼
Unlimited. Add as many files as your browser can handle.
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