Merge PDF files

Pick two or more PDFs and get one back. They are joined in the order you select them, so name them 01-, 02- if the order matters and your file picker sorts alphabetically.

Merge — free, in your browser

Your file is never uploaded. Everything below happens in this tab.

Choose PDFs or drop them hereStays in this tab. Nothing is uploaded.

Need this on a folder, on a schedule, or from your own code? The API does the same eight operations, and compress and unlock as well.

Bookmarks and form fields from the source documents are not carried across — merging rebuilds the page tree, and those live outside it. If you need them preserved, that is a job for the API rather than the browser.