Combine multiple PDF files into a single document. Drag and drop to reorder pages. All processing happens in your browser — your files are never uploaded to any server. 100% free, private, and instant.
Drop PDF files here or click to upload (multiple allowed)
Simply drag and drop your PDF files onto the upload area, arrange them in the order you want, and click "Merge PDFs". The combined PDF will be ready to download instantly. No sign-up or payment required.
Yes. ConvertFree processes everything in your browser using JavaScript and the pdf-lib library. Your PDF files never leave your device and are never uploaded to any server. Once you close the tab, your data is gone.
There is no hard limit on the number of PDFs you can merge. The only constraint is your device's available memory. Most users can merge dozens of PDFs without issues.
Yes. After uploading your PDFs, you can drag and drop them to change the order before merging. Each file can also be removed individually by clicking the X button.
Since processing happens locally in your browser, there is no server-imposed limit. Files up to 100MB each typically work fine. Very large files may be slower on older devices.
No. The PDF merge tool works entirely in your web browser. No downloads, plugins, or sign-ups required. It works on Chrome, Firefox, Safari, Edge, and mobile browsers.