Local processing

Merge PDF files online

Combine multiple PDF documents into one file. Choose their order and download the result without sending your documents to a server.

Local and private processing

Merge PDF files

Select two or more documents, arrange them and download a single PDF file.

Your files are processed directly in this browser and are not uploaded to our servers.

Drop your PDF files here

You can also select documents from your device.

PDF files onlyRecommended maximum per file: 100 MB
Files remain on your device
No registration required
Free tool
Password-protected or damaged PDF files may not be compatible. Processing time depends on file size and page count.

How to merge PDF files

  1. 1

    Select the documents

    Add two or more PDF files from your device.

  2. 2

    Choose the order

    Drag the documents or use the arrows to change their position.

  3. 3

    Merge and download

    Process the documents and download the new PDF file.

Privacy

Files are combined locally using your device. Documents are not uploaded to or stored by SG Hub.

What is preserved when merging PDFs

The tool copies the pages from each document and places them in a new PDF according to the order you selected.

  • The original size and orientation of every page.
  • The visual content of each document.
  • Selectable text when it is available.
  • Compatible images and vector elements.
  • The order defined before generating the result.

Performance and large files

Because processing takes place locally, performance depends on the memory and processing power available on your device.

Merging many documents or very large files may take longer and use more memory. Close unnecessary browser tabs when working with heavy documents.

Elements that may change when merging

  • Bookmarks and tables of contents may not be integrated.
  • Interactive forms may lose part of their behavior.
  • Digital signatures may become invalid when a new file is created.
  • Attachments or special layers may not be preserved.
  • Internal page numbering may require review afterward.

What to review before downloading

  • Order of every document.
  • Total number of pages.
  • Orientation and size of each page.
  • Presence of protected or damaged files.
  • Final size of the merged document.
Frequently asked questions

Questions about merging PDF files

How do I merge multiple PDF files?

Select two or more documents, arrange them by dragging or using the arrows, enter a filename and press Merge PDF.

Are my files uploaded to a server?

No. This tool processes documents directly inside your browser and does not store them on SG Hub.

Can I change the order of the documents?

Yes. The order displayed in the list will be the same order used in the final document.

Can I merge password-protected documents?

The tool normally cannot process encrypted documents that require a password to open.

Does the tool modify my original files?

No. Your original files remain unchanged. A new PDF is generated containing all selected pages.