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FreeLovePDF Tool Guide

Merge PDF Online

Merge PDF combines two or more PDF files into a single document in the order you choose. Files are processed in your browser using the pdf-lib library; an optional compression step for the merged output uses a third-party processing service.

When is Merge PDF useful?

Use it when several invoices, scanned pages, application documents, certificates, or other PDF files need to become one organized document.

Supported files

Supported format: PDF.

The exact limits can depend on your browser, device, file size, and the processing service used by this tool.

How to use Merge PDF

  1. 01

    Choose your file

    Open the workspace above and select the supported file type.

  2. 02

    Set your options

    Use the controls provided by the tool and check the selected files before processing.

  3. 03

    Process and download

    Start the operation, wait for completion, then save the resulting file to your device.

File processing and privacy

This tool is designed to process the selected files in your browser. The browser performs the supported operation locally, so the normal workflow does not require sending the file to our own application server. If the workspace offers an optional cloud/API operation, that operation can send the relevant file to the stated provider.

Do not upload documents containing information you are not authorized to process. For details about third-party processing, analytics, cookies, and advertising, see our Privacy Policy and Cookie Policy.

Frequently asked questions

Is there a limit to how many PDFs I can merge?

You can merge multiple PDF files in one session. Very large batches may take longer depending on your device and browser memory.

Can I reorder pages before merging?

Yes — drag and drop the uploaded files to set the order before merging.

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