PDF Merger

What is pdf merger?

Merging joins several PDFs into one file, which is easier to email, print and archive. It is common for application documents, invoices, scans and reports.

This merger runs in your browser using an open source PDF library that is hosted on this site. Your files are not uploaded and no watermark is added.

How to use the pdf merger

1. Choose two or more PDF files.
2. Press Merge PDFs.
3. Download the merged PDF.

How the pdf merger works

Each file is loaded, its pages are copied into a new document in the order the files were selected, and the new document is saved. Text, images and links in the pages are kept.

Worked example

Common uses of the pdf merger

• Job and visa applications.
• Combining invoices.
• Joining scanned pages.
• Preparing reports.
• Sending one file by email.

Tips and common mistakes

Select the files in the order you want. On many devices, the order follows the file names.

Password protected PDFs must be unlocked first.

Background: what to know before you rely on it

A PDF file is a structured set of objects: pages, fonts, images and a table that tells readers where everything is. Merging copies the page objects from each source file into a new file and rebuilds that table. Because the pages are copied rather than re drawn, text stays sharp and searchable. Differences can appear if two files use the same font name with different data, but modern libraries handle that. Always open the result and scroll through it once before you send it.

Private, free and fast

This tool runs in your browser. Your PDFs are read on your device and are not uploaded to a server. It is free to use as often as you like. See more in all pdf and media tools, or browse the full list of tools.

Related tools

Results are for information and education. For legal, financial, medical or security decisions, check with a qualified professional. Always keep your original files. Compression is lossy.