Combine multiple PDF files into one document in seconds. PDF2Tool's free PDF merger lets you reorder, preview, and merge up to 10 PDFs without signup or watermarks.
How to use Merge PDF
Upload the PDF files you want to combine — drag them in or browse to select.
Drag the files into the order you want them to appear in the merged PDF.
Click Merge PDFs and download your single combined document.
Frequently Asked Questions
How do I merge PDF files online?
Upload two or more PDFs, drag them into your preferred order, then click Merge PDFs. You'll get one combined file ready to download.
How many PDFs can I merge at once?
You can merge up to 10 PDF files in a single operation. Each file can be up to 25MB.
Will the merge keep my original quality?
Yes. PDF2Tool preserves the original pages exactly — no recompression, no quality loss, no watermarks added.
Can I rearrange the page order?
Yes. Drag any uploaded file up or down before merging to control where its pages appear in the final document.
Are my files private and secure?
Yes. Files are processed in your browser whenever possible, and any file uploaded for server-side conversion is automatically deleted within 30 minutes. We never share, sell, or read your documents.
Is this tool really free?
Yes — 100% free with no signup, no watermarks, and no hidden limits. Use every PDF2Tool feature without an account.