📄 Merge PDF Files Online
Free, no signup, runs entirely in your browser
How It Works
Select multiple PDF files and merge them into a single document with one click. The tool uses the pdf-lib library to process files entirely in your browser — your PDFs are never uploaded to any server. Also supports converting images (PNG, JPEG) to PDF, and viewing PDF metadata (pages, title, author, size).
Frequently Asked Questions
How many PDFs can I merge?+
No limit. Merge as many as your browser can handle.
Are my PDFs uploaded?+
No. Processing happens locally via pdf-lib JavaScript library. Files never leave your device.
Can I reorder pages?+
Files are merged in selection order. Select them in your desired sequence.
Can I convert images to PDF?+
Yes! Switch to the "Images → PDF" tab.
Is there a file size limit?+
No artificial limit. Very large PDFs (100MB+) may be slow.
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