Combine multiple PDF files into a single document in seconds. Upload up to 20 PDFs, drag to reorder, then click Merge. 100% browser-based — your files never leave your device.
Upload PDF files
Click to upload or drag and drop two or more PDF files into the merge tool.
Arrange the order
Drag the file cards to reorder them exactly as you want them merged.
Merge and download
Click 'Merge PDFs' and your combined PDF downloads instantly.
How do I merge PDF files online for free?
Upload your PDF files to PDFBro's Merge PDF tool, arrange them in the order you want, and click Merge. The combined PDF downloads immediately — no signup required.
How many PDFs can I merge at once?
You can merge up to 20 PDF files at once on PDFBro, with a maximum of 100 MB per file.
Is it safe to merge PDFs online?
Yes. PDFBro's PDF merge tool runs entirely in your browser. Your files are never sent to or stored on any server.
Will merging PDFs reduce quality?
No. PDFBro merges PDFs without re-rendering or re-encoding content, so there is no quality loss.
Can I merge PDF files with different page sizes?
Yes. PDFBro can combine PDFs with different page orientations and sizes into a single document.
100% Free — no hidden fees
No signup or account needed
Files processed locally in browser
No watermarks added
Drop PDF files here or click to browse
Upload multiple PDFs to merge them in order. Drag to reorder.
Add at least 2 PDF files to enable merging
