PDF Merger
Free PDF merger. Combine two or more PDF files into one single document right in your browser. Fast, private, no watermarks or signup needed.
About this tool
Scattered PDFs are a hassle: three attachments instead of one report, separate invoices instead of one file. A PDF merger combines multiple documents into a single PDF in the order you choose, so everything stays together.
This free tool merges your files entirely in the browser. Nothing is uploaded, nothing is watermarked, and your files never leave your device. It is the fastest way to tidy up a pile of PDFs.
How to use
Click the file button and select two or more PDFs. Most systems let you select several files at once by holding Ctrl or Cmd while clicking. The files merge in the order your system lists them, so rename them like 01.pdf and 02.pdf first if order matters.
Click Merge PDFs, wait a moment, then download the combined document. Every page from every file is preserved exactly as it was, in one clean file ready to email or archive.
The math behind it
Merging a PDF means copying page objects from several documents into one new document. This tool reads each file, copies every page, including its text, images and fonts, into a fresh PDF, and writes the result.
Because pages are copied rather than re-rendered, the content stays identical to the originals. Fonts and images travel along with their pages, so the merged file looks exactly like the separate files did, just joined together.