PDF Merger

## Merge PDF files in your browser Combine several PDFs into one document: drop the files in, put them in the order you want, and download the result. The merge happens entirely in your browser — your files are never uploaded to a server — so even confidential contracts or statements stay on your device. ## Why merging locally matters Most free "merge PDF" sites upload your documents to their servers to do the work, which is a privacy problem for anything sensitive. This tool processes the PDFs with JavaScript in the page, so nothing leaves your computer and there is no waiting on an upload or a processing queue. ## Common reasons to combine PDFs Assemble a single file from separate scans, append an appendix to a report, combine signed pages back into one contract, or bundle invoices for an expense claim. Keeping everything in one ordered PDF makes it easier to email, print, and archive. ## Order and size Arrange the files before merging; the output preserves each source page as it was, so there is no quality loss. If the combined file is large, run it through the [PDF compressor](/tools/developer/pdf-compressor). To turn images into a PDF first, see the [image to PDF converter](/tools/developer/image-to-pdf-converter).