Merge PDF
Combine multiple PDF files into a single document
Drop files here or click to browse
PDF files supported • Up to 50 files
How to merge PDF files
- Select two or more PDF files by dropping them above or clicking to browse.
- Drag files to reorder them as needed.
- Click "Merge & Download" to combine them into one PDF.
- Your merged PDF will download automatically.
About PDF Merger
Combine multiple PDF files into a single document in seconds. Drag and drop your files, reorder them as needed, and merge them into one cohesive PDF. Runs entirely in your browser — your files never leave your device.
How to Use
- 1.Upload two or more PDF files by dragging them into the drop zone
- 2.Reorder files by dragging them to the desired position
- 3.Click 'Merge PDFs' to combine them
- 4.Download your merged PDF file
Features
- ✓Merge unlimited PDF files at once
- ✓Drag-and-drop reordering
- ✓100% client-side — files never uploaded
- ✓Preserves all formatting, links, and bookmarks
- ✓Works with any PDF size
- ✓No watermarks added
- ✓Instant processing
- ✓Works offline (PWA)
Frequently Asked Questions
How many PDFs can I merge at once?
There's no limit. You can merge as many PDFs as your browser memory allows — typically 50+ files without issues.
Are my files uploaded anywhere?
No. Merging happens 100% in your browser using pdf-lib. Your files never leave your device.
Will the merged PDF keep my bookmarks and links?
Yes, all internal structure including hyperlinks, bookmarks, and form fields are preserved.
Can I merge password-protected PDFs?
You'll need to unlock them first using our Unlock PDF tool, then merge the unlocked versions.
Free
No hidden costs
Private
Files stay local
Unlimited
No daily limits