About

PDF Merge

Merge multiple PDF files into one — free, fast, and runs entirely in your browser

Click or drag PDF files here

Upload multiple PDF files to merge

Upload PDF files and click Merge to combine

How it works:

  • Upload two or more PDF files
  • Drag to reorder files
  • Click Merge PDFs to combine them
  • Download the merged result

All processing is done locally in your browser.

About This Tool

PDF Merge is a free online tool that combines multiple PDF files into a single document. Whether you need to merge scanned pages, combine reports, or consolidate multiple documents into one file, this tool makes it easy. All processing happens directly in your browser — your PDF files are never uploaded to any server, ensuring complete privacy and security. The tool supports drag-and-drop reordering so you can arrange pages in the exact order you need before merging. It works with any PDF file regardless of size or page count, and the merged output maintains the original quality of all source documents.

How to Use

  1. Click the 'Upload PDF Files' button or drag and drop PDF files onto the upload area. You can select multiple files at once.
  2. Review the uploaded files in the list. Each file shows its name, number of pages, and file size.
  3. Reorder files by dragging them up or down, or use the arrow buttons to move individual files.
  4. Remove any unwanted files by clicking the delete button next to each file.
  5. Once your files are in the correct order, click the 'Merge PDFs' button to combine them.
  6. After merging, preview the result and click 'Download' to save the merged PDF to your device.

Frequently Asked Questions

There is no strict limit on the number of files. However, merging a very large number of files or files with many pages may take longer and use more browser memory. For best performance, we recommend merging 20 or fewer files at a time.
No. All PDF merging happens entirely in your browser using JavaScript. Your files never leave your device, ensuring complete privacy and security. There is no server-side processing involved.
Currently, the tool does not support merging password-protected PDFs. You would need to remove the password protection from your PDFs before merging them. There are many free tools available for removing PDF passwords.
No. The merge process simply combines the pages from each PDF without re-compressing or modifying the content. The output quality is identical to the original source files.
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