Merge PDF
Combine multiple PDF files into one document
Drop images here or click to browse
Supports JPG, PNG, WebP, GIF, BMP, SVG
Drop a PDF file here or click to browse
Max 50MB - processed entirely in your browser
Drop multiple PDF files here or click to browse
Select 2 or more PDFs to merge into one
How to Use Merge PDF
- Drag and drop multiple PDF files onto the dropzone or click to browse
- Add at least 2 PDF files to merge
- Review the file list — files are merged in the order shown
- Click 'Merge PDFs' — all pages from all files are combined in your browser
- Download the merged PDF instantly — no upload, no sign-up required
Frequently Asked Questions
How many PDFs can I merge at once?
There is no limit on the number of files. You can merge as many PDF files as you want. All pages from all files are combined into a single document.
Does merging preserve the original formatting?
Yes. Every page from every PDF is copied exactly as-is. Fonts, images, layouts, and all formatting are preserved in the merged output.
Are my PDF files uploaded to a server?
No. All merging happens 100% in your browser using the pdf-lib JavaScript library. Your documents never leave your device.
Can I reorder the PDFs before merging?
The PDFs are merged in the order they appear in the file list. You can remove individual files and re-add them in your preferred order.