Merge PDFs online for free

Merge several PDFs into one file, organize their pages however you want, then download the finished document.

Use this tool for free as often as you need. The document is processed on your device so its contents remain under your control.

or drop the file herePDF · Up to 50 MB per file

How it works

  1. Select at least two PDF files.
  2. Review and adjust the page order.
  3. Export the combined document.

What you can do

  • Import several PDF files
  • Reorder pages after combining them
  • Remove or add pages before export

See the tool in action

Merge PDFs, SunPDF
Real SunPDF screenshot for “Merge PDFs”, created with a fictional practice document containing no personal data.

Try the example

Fictional documents: three practice pages and an appendix, with no personal data.

The button opens the three-page document and appends the appendix. Check all four pages and put the appendix last before exporting.

What does this PDF tool do?

The first file becomes the main document. The other files are appended during the same session, and you can reorder all pages before export.

Document processing happens in your browser. SunPDF does not upload your PDF to a server for editing. Closing or refreshing the tab ends the current session.

When to use this tool

Merging suits case files, agreements, and evidence received as separate files when one ordered document is easier to share.

How to check the result

Count the pages, inspect every join between source files, and confirm that none is missing, repeated, or out of place.