InstaUtils

PDF Merge

Merge PDFs without Adobe Acrobat. Combine multiple PDFs into one. Free, no software install, works in browser.

How to use this pdf merge

  1. Click "Select PDF files to merge" and choose multiple PDF files
  2. Reorder files using the up/down arrows if needed
  3. Click "Merge PDFs" to combine all selected files
  4. Download the merged PDF file

Related Tools

PDF Split

Split PDF files into separate documents by pages.

Open Tool →

PDF Compress

Compress PDF files to reduce file size.

Open Tool →

Frequently Asked Questions

How does PDF merging work?

The merge happens entirely in your browser using pdf-lib. Your PDFs are never uploaded to any server. All processing is done locally on your device.

What is the maximum number of PDFs I can merge?

There is no hard limit, but very large files or many files may take longer to process. The tool works best with PDFs under 50MB each.

Will the merged PDF maintain all formatting?

Yes, the merged PDF preserves all pages, formatting, and content from the original PDFs in the order you specify.