Docu StopMerge PDFs
Combine multiple PDF files into one
Choose files or drag them here
Up to 4.5 MB per requestCombine multiple PDFs into one document
Our free PDF merger lets you join multiple PDF files into a single document in seconds. Upload two or more PDFs, and we will combine them in the order you choose. There is no limit on the number of files you can merge, and the entire process happens securely in your browser. Perfect for combining invoices, reports, scanned documents or chapters into one cohesive PDF file. Unlike other tools, there are no watermarks, no sign-up gates, and no file size tricks — just a clean merged PDF ready to download.
Frequently asked questions
Can I merge PDFs without signing up?
Yes — the merge tool is completely free and requires no account, no email, and no sign-up. Just upload your files, click Process, and download.
Is there a limit on how many PDFs I can merge?
No limit on the number of files. You can combine 2, 5, 10 or more PDFs in a single batch. The only constraint is the combined file size (about 4.5 MB per request).
Does the merged PDF have a watermark?
No watermark, no logo, no footer added. Your merged PDF is clean and original — exactly as if you had combined the files yourself.
Can I merge PDFs on my phone?
Yes, the web tools work in any mobile browser. For larger files and more features, download the Docu Stop app.
Is this tool free?
Yes, all Docu Stop web tools are completely free to use with no hidden charges or credit card required.
Are my files private and secure?
Absolutely. Files are processed over encrypted connections and automatically deleted from our servers after processing. We never access, store, or share your documents.
What is the file size limit?
Uploads are limited to approximately 4.5 MB per request due to server constraints. For larger files, download the Docu Stop mobile app which supports documents of any size.