Combine PDF files online

Combine PDF files into one document with file ordering controls.

Use this page when multiple PDF attachments need to become one file before sending or uploading.

Combine PDF files online

1. Choose the matching PDF tool.
2. Add local PDF, JPG, or PNG files.
3. Set page ranges, order, or output options.
4. Process locally and download the result.

Are my PDF files uploaded?

No. The core tools run in your browser with local file APIs. Static hosting may receive normal page requests, but the selected PDF files are not sent to an upload server.

What file size works best?

Small and medium PDFs work best in a browser. Very large PDFs can use a lot of memory, especially on older phones.