Merge multiple PDF files into one online for free. Reorder documents before combining — everything stays in your browser. No uploads, no signup required.
First time here? Upload or drag two or more PDF files Your input is processed locally and disappears when you close the tab.
Combining PDFs is one of the most common document tasks there is — assembling a contract with its appendices, bundling invoices for accounting, or stitching scanned chapters into a single file. Our free PDF Merger does it entirely in your browser: load your files, drag them into order, and download one combined PDF.
Most online PDF merge sites upload your documents to their servers, which is a real problem for contracts, financial records, and anything confidential. This tool uses a client-side PDF library to copy pages between documents locally, so your files never cross the network and there are no size caps or daily limits to work around.
Pages are transferred without re-rendering, which means text stays selectable, images keep their resolution, and the merged file is as close to the originals as PDF allows. Need the reverse operation? Use our PDF Splitter to extract a page range, fix sideways scans with the PDF Rotator, or turn photos into a document with Images to PDF.
Upload or drag two or more PDF files
Drag the files into the order you want
Review the page counts for each document
Click Merge PDFs
Download the combined PDF file
Drop PDFs or click to upload
Add 2+ files · merged in your browser