Merge PDF Files Online
Drag in two or more PDF files and merge them into one document in seconds. Reorder pages before combining and download the result instantly — no upload required, all processing runs in your browser.
Drop PDF files here or click to select
Add two or more PDFs to merge them into one
Note: Password-protected PDFs may produce blank pages in the merged output.
Add at least one more PDF to merge.
How to Merge PDF Files
Add two or more PDF files using the drop zone above or the Add more PDFs button. Use the up and down arrows to set the order; pages from the first file appear first in the merged document. When the order is correct, click Merge. The merged PDF is ready to download instantly, with no upload required.
Does Order Matter?
Yes. Pages appear in the exact order shown in the list, from top to bottom. Reorder files using the up and down arrows before clicking Merge. You can add the same file twice if its pages need to appear in multiple places in the merged document. Duplicate files are allowed intentionally.
What About Password-Protected PDFs?
Password-protected PDFs can be added, but their pages may appear blank in the merged output because the content is encrypted. To get a proper merged result, remove the password from the PDF in your PDF reader first, then re-merge. Office Quick Tools does not decrypt PDFs.
Why Use a Browser-Based PDF Merger?
PDF files often contain sensitive content: contracts, financial records, legal documents. A browser-based merger means those files never leave your device. No upload. No server. No third party sees your documents. Processing runs entirely using pdf-lib in your browser.